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# Section 4 1 math

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### Section 4 1 math

1. 1. Section 4-1<br />
2. 2. 1. Objective: Write verbal<br /> phrases and sentences <br />as simple algebraic <br />expressions and <br />equations.<br />
3. 3. 2.Expression: <br />a combination of <br />variables, numbers,<br /> and at <br />least one operation.<br />
4. 4. 3. Equation: <br />Same as an <br />expression but will<br /> have an equal sign.<br />
5. 5. 4. The word is means =.<br />
6. 6. 5. Addition words:<br />Plus<br />Sum<br />More than<br />Increased by<br />In all<br />
7. 7. Examples:<br />A number increased <br />by 3<br />N + 3<br /> Three more runs <br />than the Pirates scored.<br />P + 3<br />
8. 8. 6. Subtraction words:<br />Minus<br />Difference<br />Less than<br />Less<br />Decreased by<br />
9. 9. Examples:<br />Five dollars less than<br /> Jennifer earned.<br />D โ 5<br /> 7 decreased by 2<br />7-2<br />
10. 10. 7. When the word <br />than is in a phrase, <br />you write it backwards.<br />
11. 11. The Than Family <br />(Write it Backwards)<br />The than family is dysfunctional โ<br />Write backwards<br />
12. 12. 8. Multiplication Words:<br />Times<br />Product<br />Multiplied<br />Twice, Tripled, ectโฆ.<br />Each<br />
13. 13. Examples:<br />Twice a number<br />2x<br />The product of 4 and<br /> a number <br />4n<br />
14. 14. 9. Division words:<br />Divided <br />Quotient<br />Per<br />separate<br />
15. 15. Emilyโs age divided by 3<br />๐๐<br />125 students separated <br />into n classes.<br />๐๐๐๐<br />ย <br />
16. 16. 15 + t<br />Fifteen increased by t<br />
17. 17. J-9<br />Nine dollars less than j <br />
18. 18. 8r<br />The product of r and 8<br />
19. 19. ๐ณ๐<br />ย <br />Larryโs age divided by 3<br />
20. 20. N+4 = -8<br />The sum of a number <br />and four is -8<br />
21. 21. 5d=-20<br />The product of a number <br />and five is -20 <br />
22. 22. h-10 = 26<br />Ten inches less than her <br />height equals 26. <br />
23. 23. 2a + 7=51<br />Seven more than <br />twice his age is 51. <br />
24. 24. C + 2 = 4<br />Two more than the <br />number of cookies is 4.<br />
25. 25. 10k = 280<br />Ten times the number <br />of students is 280. <br />
26. 26. N-5 = 31<br />Five less than a <br />number equals 31. <br />
27. 27. 2z + 3 = 15<br />Three more than <br />twice a number is 15. <br />