Algebra

Answer Key Transparencies

Provides transparencies with answers for each lesson in the Student Edition

ISBN 0-07-828001-X

90000

9 780078 280016

Chapter 1 Solving Equations and Inequalities Lesson 1-1 Expressions and Formulas Pages 8–10

1. First, find the sum of c and d. Divide this sum by e. Multiply the quotient by b. Finally, add a. 3. b; The sum of the cost of adult and children tickets should be subtracted from 50. Therefore, parentheses need to be inserted around this sum to insure that this addition is done before subtraction. 5. 6 7. 1 9. 119 11. 23 13. $432 15. $1162.50 17. 3 19. 25 21. 23. 5 25. 29. 31 3 27. 14 31. 162 33. 2.56 35. 25

1 3

2. Sample answer:

14 5

4

4. 72

6. 23 8. 10. 0 12. 18 14. $1875 16. 20 18. 29 20. 54 22. 19 24. 11 26. 7 28. 30. 34. 15 52 7 34 2

32. 15.3

36. about 1.8 lb 38. 3.4 40. 45

1

Algebra 2 Chapter 1

37. 31.25 drops per min 39. 2

©Glencoe/McGraw-Hill

41. 43. 47. 49. 2 51.

4.2 4 8

1 6

42. 5.3 44. 75 46. 4

y a 5 2 b

45. 1.4

48. 36.01 50.

2

16

52. 30 54. 400 ft 56. Nurses use formulas to calculate a drug dosage given a supply dosage and a doctor’s drug order. They also use formulas to calculate IV flow rates. Answers should include the following. • A table of IV flow rates is limited to those situations listed, while a formula can be used to find any IV flow rate. • If a formula used in a nursing setting is applied incorrectly, a patient could die. 58. D 60. 4 62. 13 64. 66.

6 7

53. $8266.03 55. Sample answer: 4 4 4 4 1 4 4 4 4 2 14 4 42 4 3 4 14 42 4 4 14 4 42 4 5 14 42 4 4 6 44 4 4 7 14 42 14 42 8 4 4 4 4 9 144 42 4 10

57. C 59. 3 61. 10 63. 65.

2 3

2

5

©Glencoe/McGraw-Hill

2

Algebra 2

Chapter 1

Lesson 1-2

1a. 1b. 1c. 1d. 1e. 1f. Sample Sample Sample Sample Sample Sample answer: 2 answer: 5 answer: 11 answer: 1.3 answer: 12 answer: 1.3

Properties of Real Numbers Pages 14–18

2. A rational number is the ratio of two integers....