The document shows the step-by-step work to solve the linear equation 3x^2 + 4 = 13. It begins by multiplying both sides by 2 to eliminate the fraction. It then distributes and combines like terms before subtracting and dividing to isolate x. The final solution is x = 6.
This document provides examples for solving word problems by translating English phrases into mathematical expressions. It discusses key phrases like "more than", "less than", and "times" and how they relate to addition, subtraction, and multiplication. Several geometry and consecutive number word problems are worked out step-by-step. The document emphasizes setting up variables clearly before solving and checking that the answer makes sense in the original context.
The document contains questions related to CAT, MAT, GMAT entrance exams. It discusses various topics like probability, permutations and combinations, averages, ratios etc. and provides solutions to sample questions in 3-4 sentences each. The overall document aims to help exam preparation by providing practice questions on common quantitative topics.
The document contains solutions to 11 math problems from a math competition. The solutions provide explanations and work shown to arrive at the answers. The greatest possible sum of distances from a point P to the three sides of a triangle is 4. The probability that a sequence of random button picks will have at least 3 picks and the third pick be the M button is 1/12. The least possible value of ABCD - AB x CD, where ABCD is a 4-digit positive integer and AB and CD are 2-digit positive integers, is 109.
The document discusses various types of numbers including natural numbers, whole numbers, and integers. It provides examples and explanations related to properties of these numbers. Some key points include:
- Natural numbers start from 1 and do not include 0, negative numbers, or decimals.
- Whole numbers include all natural numbers and 0.
- Integers include whole numbers and their negatives.
- Examples are provided to illustrate properties like divisibility, perfect squares, and solving word problems involving sums and products of numbers.
- The last part discusses Donkey's stable number based on his true and false answers to questions about divisibility, being a square, and the first digit. It is determined his number must
This document provides lessons and examples on ratio and proportion concepts to help students with analytical skills. It includes solved examples of ratio and proportion word problems. The document was created by Dr. T.K. Jain for free online entrepreneurship programs. It encourages students to help spread knowledge and social entrepreneurship. Links are provided to download additional free study materials on various topics.
Number patterns and sequences slide (ika) final!!Nurul Akmal
This document summarizes key concepts about number patterns, sequences, and related topics:
1) It defines terms like sequences, patterns, Fibonacci sequence, odd and even numbers, prime numbers, factors, prime factors, multiples, lowest common multiple (LCM), common factors, and highest common factor (HCF).
2) It provides examples of how to identify these concepts, like determining if a number is prime, finding all factors of a number, listing multiples, and calculating LCM and HCF.
3) The concepts are explained through clear definitions and visual diagrams, with multiple methods and examples provided to illustrate each topic.
The document provides information about arithmetic and geometric series. It defines arithmetic and geometric series, provides examples of finding sums of arithmetic series using formulas, and defines the key terms (first term, common ratio, number of terms, last term) used in the formula to calculate the sum of a geometric series.
1) The document discusses solving systems of linear equations through examples involving finding unknown numbers, ticket sales, and mixture problems.
2) The examples show setting up the systems of equations, choosing variables to represent the unknowns, translating the word problems into algebraic equations, and solving the systems using substitution or addition methods.
3) The solutions are checked by substituting the values back into the original equations to verify the answers.
This document provides examples for solving word problems by translating English phrases into mathematical expressions. It discusses key phrases like "more than", "less than", and "times" and how they relate to addition, subtraction, and multiplication. Several geometry and consecutive number word problems are worked out step-by-step. The document emphasizes setting up variables clearly before solving and checking that the answer makes sense in the original context.
The document contains questions related to CAT, MAT, GMAT entrance exams. It discusses various topics like probability, permutations and combinations, averages, ratios etc. and provides solutions to sample questions in 3-4 sentences each. The overall document aims to help exam preparation by providing practice questions on common quantitative topics.
The document contains solutions to 11 math problems from a math competition. The solutions provide explanations and work shown to arrive at the answers. The greatest possible sum of distances from a point P to the three sides of a triangle is 4. The probability that a sequence of random button picks will have at least 3 picks and the third pick be the M button is 1/12. The least possible value of ABCD - AB x CD, where ABCD is a 4-digit positive integer and AB and CD are 2-digit positive integers, is 109.
The document discusses various types of numbers including natural numbers, whole numbers, and integers. It provides examples and explanations related to properties of these numbers. Some key points include:
- Natural numbers start from 1 and do not include 0, negative numbers, or decimals.
- Whole numbers include all natural numbers and 0.
- Integers include whole numbers and their negatives.
- Examples are provided to illustrate properties like divisibility, perfect squares, and solving word problems involving sums and products of numbers.
- The last part discusses Donkey's stable number based on his true and false answers to questions about divisibility, being a square, and the first digit. It is determined his number must
This document provides lessons and examples on ratio and proportion concepts to help students with analytical skills. It includes solved examples of ratio and proportion word problems. The document was created by Dr. T.K. Jain for free online entrepreneurship programs. It encourages students to help spread knowledge and social entrepreneurship. Links are provided to download additional free study materials on various topics.
Number patterns and sequences slide (ika) final!!Nurul Akmal
This document summarizes key concepts about number patterns, sequences, and related topics:
1) It defines terms like sequences, patterns, Fibonacci sequence, odd and even numbers, prime numbers, factors, prime factors, multiples, lowest common multiple (LCM), common factors, and highest common factor (HCF).
2) It provides examples of how to identify these concepts, like determining if a number is prime, finding all factors of a number, listing multiples, and calculating LCM and HCF.
3) The concepts are explained through clear definitions and visual diagrams, with multiple methods and examples provided to illustrate each topic.
The document provides information about arithmetic and geometric series. It defines arithmetic and geometric series, provides examples of finding sums of arithmetic series using formulas, and defines the key terms (first term, common ratio, number of terms, last term) used in the formula to calculate the sum of a geometric series.
1) The document discusses solving systems of linear equations through examples involving finding unknown numbers, ticket sales, and mixture problems.
2) The examples show setting up the systems of equations, choosing variables to represent the unknowns, translating the word problems into algebraic equations, and solving the systems using substitution or addition methods.
3) The solutions are checked by substituting the values back into the original equations to verify the answers.
1. The document describes how to use a double set matrix to solve overlapping sets problems. It provides examples of full double set matrices with values filled in to solve 4 different overlapping sets problems.
2. The key aspects are that a double set matrix organizes the sets into rows and columns and the totals must sum correctly. Values can be derived using relationships between the given and total values.
3. The examples walk through setting up the double set matrix, filling in known values, deriving other values, and extracting the answer from the fully populated matrix.
This document provides practice questions and tips in business mathematics. It contains multiple choice questions related to topics like ratios, percentages, profit and loss, time and work, averages, simple and compound interest, discounts, and permutations and combinations. The questions are intended to help students prepare for competitive exams in subjects like commerce and management.
This document discusses arithmetic sequences, which are sequences where the difference between successive terms is always the same number called the common difference. It provides examples of arithmetic sequences and formulas for finding individual terms and the sum of terms. Key formulas introduced are the term generating formula an = a + (n-1)d, where a is the first term and d is the common difference, and the formula for the sum of n terms S = (n/2)(a1 + aN), where a1 is the first term and aN is the last term.
This document introduces factorization and finding the greatest common divisor (GCD). It discusses factors, prime numbers, prime factorization, and common factors. Examples are provided to show how to determine if a number is a factor, find all factors of a number, and use the Sieve of Eratosthenes method to identify prime numbers up to a given value. The document aims to build mastery of these concepts through practice questions provided at the end of each section.
This document discusses solving systems of linear equations in three variables. It provides an example of a system of three equations with three unknowns (x, y, z). It shows the steps to solve the system using the linear combination method by eliminating a variable in two equations, solving the resulting system, then substituting back to find the values of the remaining variables. It also provides an example word problem involving three unknown amounts of money and sets up a system of equations to solve for how much each person has.
The document defines a sequence as a set of numbers written in order. It provides the example of a sequence where each term is obtained by adding 1 to the preceding term. This rule is expressed by the equation an = an-1 + 1, where an is the nth term and an-1 is the preceding term. It asks the reader to write the first 5 terms of such a sequence and derive the rule based on the pattern.
The document contains 22 math word problems. The problems cover a variety of topics including fractions, ratios, percentages, geometry, probability, and algebra. They range in complexity from simple calculations to multi-step problems. The answers provided are numerical values, algebraic expressions, or ratios expressed as common fractions.
Arithmetic Sequence and Arithmetic SeriesJoey Valdriz
The document provides information about arithmetic sequences and arithmetic series. It defines an arithmetic sequence as a sequence of numbers where each term after the first is obtained by adding the same constant to the previous term. It gives examples of arithmetic sequences and explains how to find the common difference, the nth term of a sequence using the general formula, and how to solve problems involving arithmetic sequences and series. The last paragraph tells a story about how Carl Friedrich Gauss was able to quickly calculate the sum of all numbers from 1 to 100 by recognizing it as an arithmetic series.
An arithmetic sequence is a sequence where each term after the first is obtained by adding a constant value, called the common difference, to the preceding term. The document provides examples of arithmetic sequences and explains how to identify them and calculate the nth term using formulas like an = a1 + (n-1)d, where a1 is the first term, d is the common difference, and n is the term number. It also shows how to use these concepts and formulas to solve problems involving finding terms and sums of arithmetic sequences.
The document discusses different types of real numbers including rational and irrational numbers. It provides examples and definitions of natural numbers, whole numbers, integers, rational numbers, and irrational numbers. It also includes information on Euclid's division algorithm and its application in finding highest common factors and lowest common multiples. Examples of proving the irrationality of square roots like √5 are given.
4 ESO Academics - UNIT 03 - POLYNOMIALS. ALGEBRAIC FRACTIONSGogely The Great
The document defines monomials as algebraic expressions with one term that may contain numbers and variables. Polynomials are the addition or subtraction of two or more monomials. The key steps for operations with monomials and polynomials are:
1) Adding monomials requires they have the same literal parts and coefficients are added.
2) Multiplying monomials multiplies coefficients and adds exponents of equal variables.
3) Evaluating a polynomial substitutes a value for the variable and calculates the numerical value.
This document provides steps for solving equations with fractions in 3 paragraphs or less:
1) It outlines the general steps for solving equations which include clearing any fractions, distributing terms if possible, simplifying each side of the equation, moving constants and variables to opposite sides, and simplifying and solving for the variable.
2) It provides an example of solving a single fractional equation, showing how to clear fractions by multiplying terms by the number that cancels the denominator.
3) It discusses solving equations with more than one fraction, demonstrating finding the least common denominator to clear fractions before combining like terms and solving.
The document discusses weighted averages and how to calculate them. It provides an example of calculating the overall average weight of a group made up of two subgroups, men and women. Statement 2 alone provides enough information to determine the ratio of women to men in the group, but Statement 1 does not provide enough information on its own.
The document discusses the history of mathematics and various patterns in numbers such as magic squares, magic stars, triangular numbers, Fibonacci numbers, and Pascal's triangle. It provides examples and properties of each type of pattern. For instance, it explains that a magic square of order 8 forms another magic square if columns are rearranged and that triangular numbers represent the number of dots that can form an equilateral triangle.
Long division, synthetic division, remainder theorem and factor theoremJohn Rome Aranas
This document summarizes four methods for working with polynomials: long division, synthetic division, the remainder theorem, and the factor theorem. It provides examples of using each method to divide the polynomial 4x^4 + 2x^3 + x + 5 by the divisor x + 2. Both long division and synthetic division yield a quotient of 4x^3 - 6x^2 + 12x - 23 and remainder of 51. The remainder theorem and factor theorem also verify this solution.
This document provides examples for solving systems of linear equations by graphing. It begins by defining key terms like systems of linear equations and their solutions. Examples are then given of identifying whether an ordered pair is a solution by substituting into the equations. The document explains that solutions are found at the intersection point of the graphs. Two examples graph systems and find the solution. The document ends with a word problem about two girls reading pages from a book, which is modeled with a system of equations and solved graphically.
This document contains 60 math questions and their answers from the MATH COUNTS 2009 School Competition Countdown Round. It provides sample questions to demonstrate the format and prohibits reproducing or publishing the full questions and answers.
Expresiones algebraicas, adición y sustracción de expresiones algebraicas, multiplicación y división de expresiones algebraicas, productos notables, fraccionario de productos notables
Weekly Dose 17 - Maths Olympiad PracticeKathleen Ong
The document contains 3 math word problems and their solutions:
1) Given the total weights of groups of ducks and ducklings, it calculates that the weight of 2 ducks and 1 duckling is 20 kg.
2) Given the dimensions of a wooden block that is painted and cut into cubes, it calculates that the ratio of cubes with 2 red faces to cubes with 3 red faces is 9:2.
3) It calculates that the smallest number of numbers that must be removed from the product 1 × 2 × 3 × ... × 26 × 27 to make the remaining product a perfect square is 5.
This document discusses solving systems of linear equations by elimination. It provides examples of eliminating variables with opposite coefficients as well as multiplying equations to create opposite coefficients. The key steps are to multiply one equation by a number to create opposite coefficients, add or subtract the equations to eliminate one variable, then solve for the remaining variable and back substitute to solve for the other. Elimination avoids lengthy substitution and allows direct solving of systems of equations.
Solving Quadratic Equation by Completing the Square.pptxDebbieranteErmac
This document provides instructions for solving quadratic equations using the completing the square method. It begins with examples of perfect square trinomials and how to create them. It then walks through the steps to solve quadratic equations by completing the square, which involves getting the quadratic term alone on one side, finding the term to complete the square, factoring the resulting perfect square trinomial, and taking the square root of each side to solve for the roots. Several examples are worked through and similar problems are provided for practice.
1. The document describes how to use a double set matrix to solve overlapping sets problems. It provides examples of full double set matrices with values filled in to solve 4 different overlapping sets problems.
2. The key aspects are that a double set matrix organizes the sets into rows and columns and the totals must sum correctly. Values can be derived using relationships between the given and total values.
3. The examples walk through setting up the double set matrix, filling in known values, deriving other values, and extracting the answer from the fully populated matrix.
This document provides practice questions and tips in business mathematics. It contains multiple choice questions related to topics like ratios, percentages, profit and loss, time and work, averages, simple and compound interest, discounts, and permutations and combinations. The questions are intended to help students prepare for competitive exams in subjects like commerce and management.
This document discusses arithmetic sequences, which are sequences where the difference between successive terms is always the same number called the common difference. It provides examples of arithmetic sequences and formulas for finding individual terms and the sum of terms. Key formulas introduced are the term generating formula an = a + (n-1)d, where a is the first term and d is the common difference, and the formula for the sum of n terms S = (n/2)(a1 + aN), where a1 is the first term and aN is the last term.
This document introduces factorization and finding the greatest common divisor (GCD). It discusses factors, prime numbers, prime factorization, and common factors. Examples are provided to show how to determine if a number is a factor, find all factors of a number, and use the Sieve of Eratosthenes method to identify prime numbers up to a given value. The document aims to build mastery of these concepts through practice questions provided at the end of each section.
This document discusses solving systems of linear equations in three variables. It provides an example of a system of three equations with three unknowns (x, y, z). It shows the steps to solve the system using the linear combination method by eliminating a variable in two equations, solving the resulting system, then substituting back to find the values of the remaining variables. It also provides an example word problem involving three unknown amounts of money and sets up a system of equations to solve for how much each person has.
The document defines a sequence as a set of numbers written in order. It provides the example of a sequence where each term is obtained by adding 1 to the preceding term. This rule is expressed by the equation an = an-1 + 1, where an is the nth term and an-1 is the preceding term. It asks the reader to write the first 5 terms of such a sequence and derive the rule based on the pattern.
The document contains 22 math word problems. The problems cover a variety of topics including fractions, ratios, percentages, geometry, probability, and algebra. They range in complexity from simple calculations to multi-step problems. The answers provided are numerical values, algebraic expressions, or ratios expressed as common fractions.
Arithmetic Sequence and Arithmetic SeriesJoey Valdriz
The document provides information about arithmetic sequences and arithmetic series. It defines an arithmetic sequence as a sequence of numbers where each term after the first is obtained by adding the same constant to the previous term. It gives examples of arithmetic sequences and explains how to find the common difference, the nth term of a sequence using the general formula, and how to solve problems involving arithmetic sequences and series. The last paragraph tells a story about how Carl Friedrich Gauss was able to quickly calculate the sum of all numbers from 1 to 100 by recognizing it as an arithmetic series.
An arithmetic sequence is a sequence where each term after the first is obtained by adding a constant value, called the common difference, to the preceding term. The document provides examples of arithmetic sequences and explains how to identify them and calculate the nth term using formulas like an = a1 + (n-1)d, where a1 is the first term, d is the common difference, and n is the term number. It also shows how to use these concepts and formulas to solve problems involving finding terms and sums of arithmetic sequences.
The document discusses different types of real numbers including rational and irrational numbers. It provides examples and definitions of natural numbers, whole numbers, integers, rational numbers, and irrational numbers. It also includes information on Euclid's division algorithm and its application in finding highest common factors and lowest common multiples. Examples of proving the irrationality of square roots like √5 are given.
4 ESO Academics - UNIT 03 - POLYNOMIALS. ALGEBRAIC FRACTIONSGogely The Great
The document defines monomials as algebraic expressions with one term that may contain numbers and variables. Polynomials are the addition or subtraction of two or more monomials. The key steps for operations with monomials and polynomials are:
1) Adding monomials requires they have the same literal parts and coefficients are added.
2) Multiplying monomials multiplies coefficients and adds exponents of equal variables.
3) Evaluating a polynomial substitutes a value for the variable and calculates the numerical value.
This document provides steps for solving equations with fractions in 3 paragraphs or less:
1) It outlines the general steps for solving equations which include clearing any fractions, distributing terms if possible, simplifying each side of the equation, moving constants and variables to opposite sides, and simplifying and solving for the variable.
2) It provides an example of solving a single fractional equation, showing how to clear fractions by multiplying terms by the number that cancels the denominator.
3) It discusses solving equations with more than one fraction, demonstrating finding the least common denominator to clear fractions before combining like terms and solving.
The document discusses weighted averages and how to calculate them. It provides an example of calculating the overall average weight of a group made up of two subgroups, men and women. Statement 2 alone provides enough information to determine the ratio of women to men in the group, but Statement 1 does not provide enough information on its own.
The document discusses the history of mathematics and various patterns in numbers such as magic squares, magic stars, triangular numbers, Fibonacci numbers, and Pascal's triangle. It provides examples and properties of each type of pattern. For instance, it explains that a magic square of order 8 forms another magic square if columns are rearranged and that triangular numbers represent the number of dots that can form an equilateral triangle.
Long division, synthetic division, remainder theorem and factor theoremJohn Rome Aranas
This document summarizes four methods for working with polynomials: long division, synthetic division, the remainder theorem, and the factor theorem. It provides examples of using each method to divide the polynomial 4x^4 + 2x^3 + x + 5 by the divisor x + 2. Both long division and synthetic division yield a quotient of 4x^3 - 6x^2 + 12x - 23 and remainder of 51. The remainder theorem and factor theorem also verify this solution.
This document provides examples for solving systems of linear equations by graphing. It begins by defining key terms like systems of linear equations and their solutions. Examples are then given of identifying whether an ordered pair is a solution by substituting into the equations. The document explains that solutions are found at the intersection point of the graphs. Two examples graph systems and find the solution. The document ends with a word problem about two girls reading pages from a book, which is modeled with a system of equations and solved graphically.
This document contains 60 math questions and their answers from the MATH COUNTS 2009 School Competition Countdown Round. It provides sample questions to demonstrate the format and prohibits reproducing or publishing the full questions and answers.
Expresiones algebraicas, adición y sustracción de expresiones algebraicas, multiplicación y división de expresiones algebraicas, productos notables, fraccionario de productos notables
Weekly Dose 17 - Maths Olympiad PracticeKathleen Ong
The document contains 3 math word problems and their solutions:
1) Given the total weights of groups of ducks and ducklings, it calculates that the weight of 2 ducks and 1 duckling is 20 kg.
2) Given the dimensions of a wooden block that is painted and cut into cubes, it calculates that the ratio of cubes with 2 red faces to cubes with 3 red faces is 9:2.
3) It calculates that the smallest number of numbers that must be removed from the product 1 × 2 × 3 × ... × 26 × 27 to make the remaining product a perfect square is 5.
This document discusses solving systems of linear equations by elimination. It provides examples of eliminating variables with opposite coefficients as well as multiplying equations to create opposite coefficients. The key steps are to multiply one equation by a number to create opposite coefficients, add or subtract the equations to eliminate one variable, then solve for the remaining variable and back substitute to solve for the other. Elimination avoids lengthy substitution and allows direct solving of systems of equations.
Solving Quadratic Equation by Completing the Square.pptxDebbieranteErmac
This document provides instructions for solving quadratic equations using the completing the square method. It begins with examples of perfect square trinomials and how to create them. It then walks through the steps to solve quadratic equations by completing the square, which involves getting the quadratic term alone on one side, finding the term to complete the square, factoring the resulting perfect square trinomial, and taking the square root of each side to solve for the roots. Several examples are worked through and similar problems are provided for practice.
The document discusses systems of linear equations and provides examples of solving different types of problems involving linear equations. Specifically, it gives 4 examples of number problems involving setting up systems of linear equations based on given conditions and solving them to find unknown values. The examples include problems involving finding two numbers based on their ratio and sum, finding consecutive odd integers with a given sum, finding two numbers given their difference and a property relating the numbers, and finding an original fraction given its value after a transformation.
1) The document provides lessons on solving quadratic equations using various methods like factoring, completing the square, and the quadratic formula.
2) It includes examples of solving quadratic equations by factoring polynomials, using the zero product property to set factors equal to zero, and finding the solutions.
3) The quadratic formula is derived by completing the square on the general quadratic equation ax2 + bx + c = 0, resulting in the formula x = (-b ± √(b2 - 4ac))/2a to solve for real solutions.
This document provides instruction on solving algebraic equations that have variables on both sides. It begins with a review of solving equations with a variable on one side, such as 6x+4=28. It then demonstrates how to solve equations with variables on both sides through a step-by-step process of combining like terms, moving terms to one side of the equation, and then dividing both sides by the coefficient of the variable. Several examples are worked through and solutions are checked by substituting the solutions back into the original equations. The document concludes by providing additional practice problems for the student to solve.
Linear equation in one variable for class VIII by G R Ahmed MD. G R Ahmed
This document discusses linear equations in one variable. It defines linear equations as those where the highest power of the variable is 1. It provides examples of linear and non-linear equations. It also discusses how to determine if a value is a solution to a linear equation and how to solve linear equations using the addition, subtraction, and multiplication properties of equality. It provides examples of solving linear equations with fractions and with consecutive integers.
The document discusses solving equations, including equations with unknowns on both sides and with brackets. It provides examples of solving various types of equations, such as equations with fractions or variables on both sides. Strategies for solving equations include collecting like terms, using the inverse operation to isolate the variable, and expanding any brackets before solving.
1. Let x = Archibald's marbles. Then Muriel has 2x marbles and Oswald has 95 - x - 2x marbles.
2. Set up an equation where their total marbles equals 95: x + 2x + (95 - x - 2x) = 95
3. Solve the equation for x. Archibald has 25 marbles.
4. Check that with x = 25, their individual amounts add to 95.
The document discusses equations and how to solve them. It defines an equation as a mathematical statement indicating two expressions are equal. There are two types: numerical equations with numbers and algebraic equations with variables. The goal in solving equations is to find the value of the variable by rewriting the equation in progressively simpler equivalent forms until the variable is isolated on one side. To do this, the same operation must be applied to both sides of the equation so equivalence is maintained.
This document provides examples of solving systems of linear equations by elimination. It explains the steps:
1) Write the system so that like terms are aligned.
2) Eliminate one variable by adding or subtracting the equations.
3) Substitute the value into one equation to solve for the other variable.
4) Write the solution as an ordered pair and check.
It shows how to multiply equations by a number to produce opposite coefficients for elimination. Examples demonstrate solving systems by addition, subtraction, and multiplication.
This document provides an overview of equations, inequalities, and their properties and solutions. It defines what an equation and inequality are using examples. It describes properties of equations and inequalities such as adding/subtracting/multiplying numbers on both sides. The document outlines different types of equations like linear, quadratic, and simultaneous equations. It also discusses solving linear and quadratic equations and inequalities using step-by-step processes. Finally, it touches on representing equations and inequalities graphically and solving simultaneous systems of linear and quadratic inequalities.
The document provides examples of solving multi-step equations, equations containing fractions, and word problems involving rates and averages. It includes 4 practice problems and asks the reader to solve them. It also provides a word problem about a person's hourly rate and earnings that requires setting up and solving an equation.
1) Fractions represent parts of a whole. They are written as a/b where a is the numerator and b is the denominator. Fractions can be reduced by dividing the numerator and denominator by common factors.
2) To multiply fractions, multiply the numerators and multiply the denominators. To divide fractions, multiply the first fraction by the reciprocal of the second fraction.
3) Mixed numbers represent an integer plus a fraction, such as 5 3/4. Improper fractions have a numerator larger than or equal to the denominator, such as 7/2, and can be converted to mixed numbers.
This document discusses two methods for solving simultaneous equations: the elimination method and the substitution method. It provides examples of using the elimination method to solve several systems of simultaneous equations, showing the steps to eliminate one variable and solve for the other variables. The document concludes by providing two word problems as examples and assigning practice problems from the book.
The document provides examples of solving various equations by using different mathematical operations and properties including:
1) Using the order of operations (PEMDAS) to solve equations step-by-step.
2) Canceling out or transferring terms between sides of an equation, such as subtracting/dividing both sides by the same number or term.
3) A quick summary of the properties for transposing or transferring terms between sides of an equation, such as changing from multiplication to division or positive to negative.
The document concludes by providing 10 practice equations to solve using these techniques.
The document provides examples of common mistakes made when working with exponents, radicals, polynomials, rational expressions, and solving equations in pre-calculus. It demonstrates incorrect work and explains the errors, such as adding instead of multiplying terms with exponents or failing to square both sides of an equation when taking the square root of each side. Key concepts are reviewed, such as factoring polynomials before simplifying rational expressions or dividing terms. Helpful formulas are also listed, such as the quadratic formula.
1. The document provides worked solutions for basic single-step algebra equations, showing the step-by-step work to isolate the variable.
2. Examples include solving equations such as 2x = 6 and x + 6 = 9, arriving at the solution x = 3 in both cases.
3. A more complex example solves the equation 2x + 4 = 8 by getting rid of elements on the side of the x until it is isolated, resulting in the solution x = 2.
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.pptHenry Hollis
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
Temple of Asclepius in Thrace. Excavation resultsKrassimira Luka
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
Gender and Mental Health - Counselling and Family Therapy Applications and In...PsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Andreas Schleicher presents PISA 2022 Volume III - Creative Thinking - 18 Jun...EduSkills OECD
Andreas Schleicher, Director of Education and Skills at the OECD presents at the launch of PISA 2022 Volume III - Creative Minds, Creative Schools on 18 June 2024.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...indexPub
The recent surge in pro-Palestine student activism has prompted significant responses from universities, ranging from negotiations and divestment commitments to increased transparency about investments in companies supporting the war on Gaza. This activism has led to the cessation of student encampments but also highlighted the substantial sacrifices made by students, including academic disruptions and personal risks. The primary drivers of these protests are poor university administration, lack of transparency, and inadequate communication between officials and students. This study examines the profound emotional, psychological, and professional impacts on students engaged in pro-Palestine protests, focusing on Generation Z's (Gen-Z) activism dynamics. This paper explores the significant sacrifices made by these students and even the professors supporting the pro-Palestine movement, with a focus on recent global movements. Through an in-depth analysis of printed and electronic media, the study examines the impacts of these sacrifices on the academic and personal lives of those involved. The paper highlights examples from various universities, demonstrating student activism's long-term and short-term effects, including disciplinary actions, social backlash, and career implications. The researchers also explore the broader implications of student sacrifices. The findings reveal that these sacrifices are driven by a profound commitment to justice and human rights, and are influenced by the increasing availability of information, peer interactions, and personal convictions. The study also discusses the broader implications of this activism, comparing it to historical precedents and assessing its potential to influence policy and public opinion. The emotional and psychological toll on student activists is significant, but their sense of purpose and community support mitigates some of these challenges. However, the researchers call for acknowledging the broader Impact of these sacrifices on the future global movement of FreePalestine.
6. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
7. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 +4 − 4 = 13−4
8. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4
9. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
10. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
11. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
12. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
2 · 3x
2 = 2·9
13. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9
14. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
15. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
3x = 18
16. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
17. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
3x
3 = 18
3
18. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
x = ¡3x
¡3
= 18
3
19. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
x = ¡3x
¡3
= 18
3 = 6
20. Linear Equations Example 1
Find solutions to the equation:
3x
2 +4 = 13 Address fraction first
We can start by Subtracting 4 from each side
3x
2 = 3x
2 $$$$+4 − 4 = 13−4 = 9
3x
2 = 9
Next, Multiply by 2 on each side
3x = ¡2 · 3x
¡2
= 2·9 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
x = ¡3x
¡3
= 18
3 = 6
The solution to the equation is x = 6
21. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
22. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
23. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13
24. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
25. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
26. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
2 · 3x
2 + 2·4 = 2 · 3x
2 +4 = 2·13 = 26
27. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
28. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
29. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
30. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x + 8−8 = 26−8
31. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8
32. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
33. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
3x = 18
34. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
35. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
3x
3 = 18
3
36. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
x = ¡3x
¡3
= 18
3
37. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
x = ¡3x
¡3
= 18
3 = 6
38. Linear Equations Example 1 Return to original problem
Find solutions to the equation:
3x
2 +4 = 13
To get rid of the fraction first we can Mulitply by 2 first.
2 · 3x
2 +4 = 2·13 = 26
On the left, we distribute and multiply each term by 2.
3x + 8 = ¡2 · 3x
¡2
+ 2·4
8
= 2 · 3x
2 +4 = 2·13 = 26
3x + 8 = 26
Next, we can Subtract 8 on both sides
3x = 3x + 8−8 = 26−8 = 18
3x = 18
Finally, we will Divide by 3 on each side to get
x = ¡3x
¡3
= 18
3 = 6
The solution to the equation is x = 6