Page 778 - Basic College Mathematics with Early Integers

A10 ANSWERS TO SELECTED EXERCISES

23. 62 in. 25. 26 ft 27. 84 in. 29. 11 ft 2 in. 31. 22 yd 1 ft 33. 6 ft 5 in. 35. 7 ft 6 in. 37. 14 ft 4 in. 39. 83 yd 1 ft 41. 6000 cm 43. 4 cm
45. 0.5 km 47. 1.7 m 49. 15 m 51. 42,000 cm 53. 7000 m 55. 83 mm 57. 0.201 dm 59. 40 mm 61. 8.94 m 63. 2.94 m or 2940 mm
2 2
65. 1.29 cm or 12.9 mm 67. 12.64 km or 12,640 m 69. 54.9 m 71. 1.55 km 73. 348 ; 12,552 75. 11 ; 420 77. 5000; 0.005; 500
3 3
2
79. 0.065; 65; 0.000065 81. 342,000; 342,000,000; 34,200,000 83. a. 213 yd b. 7692 in. 85. 10 ft 6 in. 87. 5100 ft 89. 4.8 times 91. 13 ft 11 in.
Answers to Selected Exercises
3
1 21
93. 26.7 mm 95. 15 ft 9 in. 97. 3 ft 1 in. 99. 41.25 m or 4125 cm 101. 3.35 m 103. 2.13 m 105. 121 yd 107. 15 tiles 109. 111. 0.13
3 100
1
113. 0.25 115. no 117. yes 119. no 121. Estimate: 13 yd 123. answers may vary; for example, 1 yd or 48 in. 125. answers may vary
127. 334.89 sq m 3
Section 5.5
Vocabulary and Readiness Check 1. Mass 3. gram 5. 2000 7. 2 lb 9. 2 tons
3 3 1
Exercise Set 5.5 1. 32 oz 3. 10,000 lb 5. 9 tons 7. 3 lb 9. 1 tons 11. 204 oz 13. 9800 lb 15. 76 oz 17. 1.5 tons 19. lb 21. 92 oz
4 4 20
23. 161 oz 25. 5 lb 9 oz 27. 53 lb 10 oz 29. 8 tons 750 lb 31. 3 tons 175 lb 33. 8 lb 11 oz 35. 31 lb 2 oz 37. 1 ton 700 lb 39. 0.5 kg
41. 4000 mg 43. 25,000 g 45. 0.048 g 47. 0.0063 kg 49. 15,140 mg 51. 6250 g 53. 350,000 cg 55. 13.5 mg 57. 5.815 g or 5815 mg
269
59. 1850 mg or 1.85 g 61. 1360 g or 1.36 kg 63. 13.52 kg 65. 2.125 kg 67. 200,000; 3,200,000 69. or 0.6725 ; 21,520 71. 0.5; 0.0005; 50
400
73. 21,000; 21,000,000; 2,100,000 75. 8.064 kg 77. 30 mg 79. 5 lb 8 oz 81. 35 lb 14 oz 83. 6 lb 15.4 oz 85. 144 mg 87. 6.12 kg 89. 130 lb
91. 211 lb 93. 0.16 95. 0.875 97. no 99. yes 101. no 103. answers may vary; for example, 250 mg or 0.25 g 105. true 107. answers may vary
Section 5.6
Vocabulary and Readiness Check 1. capacity 3. fluid ounces 5. cups 7. quarts 9. 2 pt 11. 2 gal 13. 3 qt 15. 3 c
1 3 1 1
Exercise Set 5.6 1. 4 c 3. 16 pt 5. 3 gal 7. 5 pt 9. 8 c 11. 3 qt 13. 10 qt 15. 9 c 17. 23 qt 19. pt 21. 14 gal 2 qt
2 4 2 4
23. 4 gal 3 qt 1 pt 25. 22 pt 27. 13 gal 2 qt 29. 4 c 4 fl oz 31. 1 gal 1 qt 33. 2 gal 3 qt 1 pt 35. 17 gal 37. 4 gal 3 qt 39. 5000 ml
41. 0.00016 kl 43. 5.6 L 45. 320 cl 47. 0.41 kl 49. 0.064 L 51. 160 L 53. 3600 ml 55. 19.3 L 57. 4.5 L or 4500 ml 59. 8410 ml or 8.41 L
1
61. 16,600 ml or 16.6 L 63. 3840 ml 65. 162.4 L 67. 336; 84; 168 69. ;1;2 71. 1.59 L 73. 18.954 L 75. 4.3 fl oz 77. yes
4
4 3 9
79. $0.677 81. 83. 85. 87. no 89. no 91. less than; answers may vary 93. answers may vary 95. 128 fl oz 97. 1.5 cc 99. 2.7 cc
5 5 10
101. 54 u or 0.54 cc 103. 86 u or 0.86 cc
Section 5.7
2
Exercise Set 5.7 1. 25.57 fl oz 3. 218.44 cm 5. 40 oz 7. 57.66 mi 9. 3.77 gal 11. 13.5 kg 13. 1.5; 1 ; 150; 60 15. 55; 5500; 180; 2160
3
17. 3.94 in. 19. 80.5 kph 21. 0.008 oz 23. yes 25. 2790 mi 27. 90 mm 29. 112.5 g 31. 104 mph 33. 26.24 ft 35. 3 mi 37. 8 fl oz
39. b 41. b 43. c 45. d 47. d 49. 29 51. 9 53. 5 55. 36 57. 2.13 sq m 59. 1.19 sq m 61. 1.69 sq m 63. 21.3 mg–25.56 mg
65. 800 sq m or 8606.72 sq ft
Chapter 5 Vocabulary Check 1. ratio 2. proportion 3. unit rate 4. unit price 5. rate 6. cross products 7. equal 8. not equal
9. Weight 10. Mass 11. meter 12. unit fractions 13. liter
23 14 5 11 7 17 18 35 9 3 5 pages 4 computers
Chapter 5 Review 1. 2. 3. 4. 5. 6. 7. 8. 9. a. 9 b. 10. a. 3 b. 11. 12.
37 51 4 13 15 35 35 27 25 25 2 min 3 hr
1 16 sandwiches 2 sandwiches
13. 52 mi/hr 14. 15 ft/sec 15. $6.96/CD 16. 1 gal/acre 17. 8 oz: $0.124 per oz; 18. 18 oz: $0.083; 19. =
3 8 players 1 player
12 oz: $0.141 per oz; 28 oz: $0.085;
8-oz size 18-oz size
12 tires 4 tires 3 1 1 3
20. = 21. no 22. yes 23. yes 24. no 25. -5 26. -15 27. 6 28. 7 29. 0.94 30. 0.36 31. 1 32. 1 33. 14 passes
3 cars 1 car 4 5 8 7
1 1
34. 35 attempts 35. 8 bags 36. 16 bags 37. 40 ft 38. 8 in. 39. 9 ft 40. 18 in. 41. 17 yd 1 ft 42. 3 ft 10 in. 43. 4200 cm 44. 0.00231 km
2 4
45. 21 yd 1 ft 46. 7 ft 5 in. 47. 9.5 cm or 95 mm 48. 2.45 km 49. 108.5 km 50. 0.24 sq m 51. 4.125 lb 52. 4600 lb 53. 3 lb 4 oz
54. 5 tons 300 lb 55. 0.027 g 56. 40,000 g 57. 3 lb 9 oz 58. 33 lb 8 oz 59. 4 lb 4 oz 60. 9 tons 1075 lb 61. 8 qt 62. 5 c 63. 7 pt 64. 72 c
65. 4 qt 1 pt 66. 3 gal 3 qt 67. 3800 ml 68. 0.042 dl 69. 1 gal 1 qt 70. 736 ml or 0.736 L 71. 10.88 L 72. yes 73. 22.96 ft 74. 10.55 m
3 1 1 teacher
75. 4.55 gal 76. 8.27 qt 77. 425.25 g 78. 10.35 kg 79. 109 yd 80. 180.4 lb 81. 3.18 qt 82. 2.36 in. 83. 84. 85.
5 8 9 students
1 nurse
86. 87. 34 miles/hour 88. 2 gallons/cow 89. 4 oz: $1.235; 8 oz: $1.248; 4-oz size 90. 12 oz: $0.054; 64 oz: $0.047; 64-oz size
4 patients
2 cups cookie dough 4 cups cookie dough 5 nickels 20 nickels
91. = 92. = 93. 1.6 94. 25 95. 13,200 ft 96. 10.75 ft 97. 4 tons 200 lb Copyright 2012 Pearson Education, Inc.
30 cookies 60 cookies 3 dollars 12 dollars
98. 500 cm 99. 1.4 g 100. 0.000286 km 101. 9117 m or 9.117 km 102. 8 gal 2 qt