The document provides examples of solving two-step inequalities and writing and solving word problems as inequalities. It begins with six examples of solving two-step inequalities by combining like terms and then isolating the variable, including graphing the solution sets on number lines. The next examples involve writing and solving word problems as inequalities, such as writing an inequality to represent the number of magazine subscriptions needed to earn $35. The document concludes by reviewing the process of solving two-step inequalities.
Mathemagic is inspired from Vedic Mathematics and Smart Maths to develope a passion for quantitative section of various entrance exams especially for those who belongs to non mathematic streams.
Amazing Math Trick-multiplication,The MISSING DIGIT trick!,Birthday Trick,The Prime Number Trick,square tricks & etc
applicable to
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
Mathemagic is inspired from Vedic Mathematics and Smart Maths to develope a passion for quantitative section of various entrance exams especially for those who belongs to non mathematic streams.
Amazing Math Trick-multiplication,The MISSING DIGIT trick!,Birthday Trick,The Prime Number Trick,square tricks & etc
applicable to
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
Pre-Calculus Quarter 4 Exam
1
Name: _________________________
Score: ______ / ______
1. Find the indicated sum. Show your work.
2. Locate the foci of the ellipse. Show your work.
π₯2
36
+
π¦2
11
= 1
Pre-Calculus Quarter 4 Exam
2
3. Solve the system by the substitution method. Show your work.
2y - x = 5
x2 + y2 - 25 = 0
4. Graph the function. Then use your graph to find the indicated limit. You do not have to
provide the graph
f(x) = 5x - 3, f(x)
5. Use Gaussian elimination to find the complete solution to the system of equations, or state
that none exists. Show your work.
4x - y + 3z = 12
x + 4y + 6z = -32
5x + 3y + 9z = 20
Pre-Calculus Quarter 4 Exam
3
6. Solve the system of equations using matrices. Use Gaussian elimination with back-
substitution.
x + y + z = -5
x - y + 3z = -1
4x + y + z = -2
7. A woman works out by running and swimming. When she runs, she burns 7 calories per
minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336
calories in her workout. Write an inequality that describes the situation. Let x represent the
number of minutes running and y the number of minutes swimming. Because x and y must be
positive, limit the boarders to quadrant I only.
Short Answer Questions: Type your answer below each question. Show your work.
8. A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that
each of these statements is true. Show your work.
Sn: 1
2
+ 4
2
+ 7
2
+ . . . + (3n - 2)
2
=
π(6π2β3πβ1)
2
Pre-Calculus Quarter 4 Exam
4
9. A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying
Sk+1 completely. Show your work.
Sn: 1 β 2 + 2 β 3 + 3 β 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3
10. Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and
70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast
blend that contains one third of a pound of A grade tea and two thirds of a pound of B grade tea
and an afternoon tea that contains one half pound of A grade tea and one half pound of B grade
tea. If Joely makes a profit of $1.50 on each pound of the breakfast blend and $2.00 profit on
each pound of the afternoon blend, how many pounds of each blend should she make to
maximize profits? What is the maximum profit?
11 Your computer supply store sells two types of laser printers. The first type, A, has a cost of $86
and you make a $45 profit on each one. The second type, B, has a cost of $130 and you make a
$35 profit on each one. You expect to sell at least 100 laser printers this month and you need to
make at least $3850 profit on them. How many of what type of p
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
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This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Embracing GenAI - A Strategic ImperativePeter Windle
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Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
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Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Hanβs Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insiderβs LMA Course, this piece examines the courseβs effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
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Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Biological screening of herbal drugs: Introduction and Need for
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Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Acetabularia Information For Class 9 .docxvaibhavrinwa19
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Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasnβt one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
Β
(7) Lesson 6.8
1. Solve each inequality. Check your solution.
1. β3x β₯ 9
2.
3. 20k > 300
Solve each inequality. Graph the solution set on a number line.
4. 4p + 3 β€ β1
5.
6. Javier earns $1.50 for every magazine subscription he sells. He needs
$35 to go on a trip with the travel club. Write an inequality to show the
number of subscriptions he needs to sell to achieve his goal?
15
2
y
οΌ
4 7
2
n
ο« οΎ
Course 2, Lesson 6-8
2. Course 2, Lesson 6-8
ANSWERS
1. x β€ β3
2. y < 30
3. k > 15
4. p β€ β1
5. n > 6
6. 1.5x β₯ 35
3. WHAT does it mean to say
two quantities are equal?
Expressions and Equations
Course 2, Lesson 6-8
8. 1
Need Another Example?
2
3
4
5
6
Step-by-Step Example
1. Solve 3x + 4 β₯ 16. Graph the solution set on a number line.
Write the inequality.
Graph the solution set.
Simplify.
3x + 4 β₯ 16
Subtract 4 from each side.
3x β₯ 12
β 4 β 4
Divide each side by 3.
Simplify.x β₯ 4
Draw a closed dot at 4 with an arrow to the right.
10. 1
Need Another Example?
2
3
4
5
6
Step-by-Step Example
2. Solve 5 + 4x < 33. Graph the solution set on a number line.
Write the inequality.
Graph the solution set.
Simplify.
5 + 4x < 33
Subtract 5 from each side.
4x < 28
β 5 β 5
Divide each side by 4.
Simplify.x < 7
Draw an open dot at 7 with an arrow to the left.
12. 1
Need Another Example?
2
3
4
5
6
Step-by-Step Example
3. Solve 7 β 2x > 11. Graph the solution set on a number line.
Write the inequality.
Graph the solution set.
Simplify.
7 β 2x > 11
Subtract 7 from each side.
You can check the solution by substituting a number less
than β2 into the original inequality. Try using β3.
Divide each side by β2. Reverse inequality symbol.
Write the inequality.Check 7 β 2x > 11
Draw an open dot at β2
with an arrow to the left.
x < β2 Simplify. Check your solution.
?
7 β 2(β3) > 11
13 > 11
Replace x with β3. Is the sentence true?
This is a true statement.
β7 β7
β2x > 4
14. 1
Need Another Example?
2
3
4
5
6
Step-by-Step Example
4. Solve β 5 < β8. Graph the solution set on a number line.
Write the inequality.
Graph the solution set.
x < β6 Simplify. Check your solution.
< β 3 Simplify.
β 5 < β 8
Add 5 to each side.
Multiply each side by 2.(2) < β 3(2)
Draw an open dot at β6 with an arrow to the left.
+ 5 + 5
16. 1
Need Another Example?
2
3
4
5
6
Step-by-Step Example
5. Halfway through the bowling league season, Stewart has 34 strikes.
He averages 2 strikes per game. Write and solve an inequality to
find how many more games it will take for Stewart to have at least
61 strikes, the league record. Interpret the solution.
Write the inequality.
Stewart should have at least 61 strikes after 14 more games.
2g β₯ 27
Simplify.
34 + 2g β₯ 61
Subtract 34 from each side.
The number of strikes plus two strikes per game is at
least 61. Let g represent the number of games he needs to bowl.
β34 β34
Simplify.
Divide each side by 2.
7
g β₯ 13.5
17. Answer
Need Another Example?
Tim has already earned $40 mowing lawns. He
earns $10 per lawn. Write and solve an inequality
to determine how many more lawns he will have to
mow to have at least $95 for a new lawnmower.
Interpret the solution.
40 + 10x β₯ 95, x β₯ 5.5. Tim will have at least
$95 after mowing 6 more lawns.
18. How did what you learned
today help you answer the
WHAT does it mean to say
two quantities are equal?
Course 2 Lesson 6-8
Expressions and Equations
19. How did what you learned
today help you answer the
WHAT does it mean to say
two quantities are equal?
Course 2 Lesson 6-8
Expressions and Equations
Sample answer:
β’ To solve two-step inequalities by applying
the properties of inequality
20. Write about the similarities
and differences between
solving two-step equations
and two-step inequalities.
Ratios and Proportional RelationshipsExpressions and Equations
Course 2 Lesson 6-8