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miller_introductory_algebra_3e_ch1_3

6182 1826 5 0 5 Identity property of addition Commutative property of multiplication 12 32 4 2 13 42 8371324 18 72132 1 7 12x 2y 4 For Exercises 7–23, perform the indicated operations. 7. 8. 19 18 1122 6 10 192 15 132 21 172 28 9. 12 10. 1 8 3 4b a 10.06 114.722 11. 12. 14 122 16 84 7 13. 14. 38 0 Undefined 7142 15. 16. 28 22 0 1162122112132 17. 18. 2 a7 b a7 b 18 102 152 5 10619. 20. 21. 22. 23. 8 312 42 18 924 9 252 42 012 3 0 04 10 0 2 315 12 3 2 24. At the beginning of the month, Vienna owed $270 on her credit card. During the month she made two payments of $80 and $150. She spent $110 and was also charged $7 in interest.What was Vienna’s credit card balance at the end of the month? Vienna owed $157. 25. Hector’s sales in his new auto parts business have been sporadic during the first year. During January his profit was –$1750. During February his profit was $4500. How much more was his profit in February than in January? 26. Identify the property that justifies each statement. a. b. c. d. 7 1 e. For Exercises 27–31, simplify the expression. 27. 28. 29. 30. 31. 5x 4y 3 7x 6y 7 314m 8p 72 3k 20 19k2 12 41p 52 18p 32 1 2112p 42 1 312 6p2 For Exercises 32–35, evaluate the expression given the values x 4 and y 3 and z 7 . 32. y2 x 5 33. 3x 2y 18 y1x 22 y2 4x z 34. 6 35. 32 For Exercises 36–38, translate the English statement to an algebraic expression. Then simplify the expression. 36. Subtract 4 from 12 37. Find the difference of 6 and 8 38. The quotient of 10 and 12 7 8 4.66 32 12 0 96 2 3 8 3 5 1 3 12m 24p 21 6k 8 4p 23 4p 4 3 12 142; 16 6 8; 2 Associative property of addition Associative property of multiplication Inverse property of multiplication Hector’s profit was $6250 more in February. 10 12 ; 5 6 118 Chapter 1 The Set of Real Numbers Writing     Translating Expression     Geometry      Scientific Calculator     Video


miller_introductory_algebra_3e_ch1_3
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