# Algebra: A Combined Approach, 4th Edition (Martin-Gay by Elayn Martin-Gay

By Elayn Martin-Gay

Elayn Martin-Gay firmly believes that each scholar can prevail, and her developmental math textbooks and video assets are influenced via this trust. Algebra: A mixed process, Fourth variation was once written to supply scholars with an effective starting place in algebra and support them successfully transition to their subsequent arithmetic direction. the recent version bargains new assets just like the scholar Organizer and now contains pupil assets at the back of the e-book to aid scholars on their quest for fulfillment.

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Additional resources for Algebra: A Combined Approach, 4th Edition (Martin-Gay Developmental Math Series)

Sample text

A. 1% c. 2 = 320% b. 0512% d. 175% R-28 C H A P T E R R I PREALGEBRA REVIEW Recall that 1 = 100%. This means that 1 whole is 100%. Use this for Exercises 101 and 102. (Source: Some Body, by Dr. Pete Rowen) 101. The four blood types are A, B, O, and AB. S. population with AB blood type. 45% 102. The top four components of bone are below. Find the missing percent. 1. 2. 3. 4. Minerals—45% Living tissue—30% Water—20% Other—? % The bar graph shows the predicted fastest-growing occupations. Use this graph for Exercises 103 through 106.

2 3# 7 1 4 8 43. 8 3 9 , 2 5 10 44. 1 7 8 , 3 8 9 Mixed Practice Add or subtract as indicated. See Examples 15 through 20, 22, and 23. 45. 4 1 + 5 5 46. 6 1 + 7 7 47. 4 1 15 12 48. 11 1 12 16 49. 2 3 + 3 7 50. 3 1 + 4 6 51. 10 5 3 21 52. 11 3 7 35 53. 8 1 3 - 6 8 8 Objectives 54. 5 2 4 - 3 5 5 55. 1 1 2 + 3 2 3 56. 7 3 13 + 2 20 15 Mixed Practice Perform the indicated operations. See Examples 11 through 23. 57. 23 4 + 105 105 58. 13 35 + 132 132 59. 17 10 21 21 60. 18 11 35 35 61. 7 # 5 10 21 62.

For example, 1 5 1 , = 2 7 2 3 #7 5 = 3 1#7 7 = # 2 5 10 Î To divide, multiply by the reciprocal. Dividing Fractions a c a d , = # , b d b c if b Z 0, d Z 0, and c Z 0 PRACTICE 12–14 Examples Divide and simplify. 3 2 , 12. 9 4 8 , 24 13. 11 15 5 , 14. 4 8 5 4 16 4 # 16 64 4 , = # = = 12. # 5 16 5 5 5 5 25 Divide and simplify. 2 The numerator and denominator have no common factors. 7 7 14 7 # 1 7 #1 1 13. , 14 = , = = # # # = 10 10 1 10 14 2 5 2 7 20 1 1 3 3 3 10 3 # 2 #5 5 , = # = = 8 10 8 3 2 # 2#2# 3 4 1 14.