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Answer KeyTransparencies
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
14 4
1. First, find the sum of c and 2. Sample answer:
5
d. Divide this sum by e.
Multiply the quotient by b.
Finally, add a.
3. b; The sum of the cost of 4. 72
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 6. 23
7. 1 8. 2
9. 119 10. 0
11. 23 12. 18
13. $432 14. $1875
15. $1162.50 16. 20
17. 3 18. 29
19. 25 20. 54
21. 34 22. 19
23. 5 24. 11
25. 31 26. 7
27. 14 28. 15
29. 3 30. 52
31. 162 32. 15.3
33. 2.56 34. 7
1
35. 25 36. about 1.8 lb
3
37. 31.25 drops per min 38. 3.4
39. 2 40. 45
©Glencoe/McGraw-Hill 1 Algebra 2 Chapter 1
,41. 4.2 42. 5.3
43. 4 44. 75
45. 1.4 46. 4
47. 8 48. 36.01
y5 2
50. a b
1
49. 2
6 2
51. 16 52. 30
53. $8266.03 54. 400 ft
55. Sample answer: 56. Nurses use formulas to
44441 calculate a drug dosage
44442 given a supply dosage and a
14 4 42 4 3 doctor’s drug order. They
4 14 42 4 4
also use formulas to
calculate IV flow rates.
14 4 42 4 5 Answers should include the
14 42 4 4 6 following.
44 4 4 7 • A table of IV flow rates is
14 42 14 42 8 limited to those situations
listed, while a formula can
44449
144 42 4 10
be used to find any IV flow
rate.
• If a formula used in a
nursing setting is applied
incorrectly, a patient could
die.
57. C 58. D
59. 3 60. 4
61. 10 62. 13
63. 2 64. 5
2 6
65. 66.
3 7
©Glencoe/McGraw-Hill 2 Algebra 2 Chapter 1
, Lesson 1-2 Properties of Real Numbers
Pages 14–18
1a. Sample answer: 2 2. A rational number is the ratio
1b. Sample answer: 5 of two integers. Since 13 is
1c. Sample answer: 11 13
not an integer, is not a
1d. Sample answer: 1.3 2
rational number.
1e. Sample answer: 12
1f. Sample answer: 1.3
3. 0; Zero does not have a 4. Z, Q, R
1
multiplicative inverse since
0
is undefined.
5. N, W, Z, Q, R 6. Q, R
7. Multiplicative Identity 8. Associative Property ()
1
9. Additive Identity 10. 8,
8
1 2
11. , 3 12. 1.5,
3 3
13. 2x 4y 14. 13p
15. 3c 18d 16. 17a 1
17. 1.5(10 15 12 8 18. $175.50
19 22 31) or 1.5(10)
1.5(15) 1.5(12) 1.5(8)
1.5(19) 1.5(22) 1.5(31)
19. W, Z, Q, R 20. Q, R
21. N, W, Z, Q, R 22. Q, R
23. I, R 24. Z, Q, R
25. N, W, Z, Q, R 26. I, R
27. Q, R; 2.4, 2.49, 2.49, 2.49, 2.9 28. Additive Inverse
29. Associative Property () 30. Additive Identity
31. Associative Property () 32. Commutative Property ()
33. Multiplicative Inverse 34. Distributive
35. Multiplicative Identity 36. 0
1
37. m; Additive Inverse 38. ; Multiplicative Inverse
m
©Glencoe/McGraw-Hill 3 Algebra 2 Chapter 1
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