Page 769 - Basic College Mathematics with Early Integers

Answers to Selected Exercises

Chapter 1 The Whole Numbers
Section 1.2
Vocabulary and Readiness Check 1. whole 3. words 5. period
Exercise Set 1.2 1. tens 3. thousands 5. hundred-thousands 7. millions 9. three hundred fifty-four 11. eight thousand, two hundred
seventy-nine 13. twenty-six thousand, nine hundred ninety 15. two million, three hundred eighty-eight thousand 17. twenty-four million,
three hundred fifty thousand, one hundred eighty-five 19. three hundred four thousand, three hundred sixty-seven 21. two thousand, six hundred
23. fifteen million, eight hundred thousand 25. fourteen thousand, four hundred thirty-three 27. thirteen million 29. 6587 31. 59,800
33. 13,601,011 35. 7,000,017 37. 260,997 39. 395 41. 16,732 43. $72,704,000 45. 1317 47. 400 + 6 49. 3000 + 400 + 70
51. 80,000 + 700 + 70 + 4 53. 60,000 + 6000 + 40 + 9 55. 30,000,000 + 9,000,000 + 600,000 + 80,000 57. 5532; five thousand, Answers to Selected Exercises
five hundred thirty-two 59. 5000 + 400 + 90 + 2 61. Mt.Washington 63. Boxer 65. Labrador retriever; one hundred twenty-three thousand,
seven hundred sixty 67. 25 pounds 69. 9861 71. no; one hundred five 73. answers may vary 75. 1,000,000,000,000,000 77. Canton
Section 1.3
Calculator Explorations 1. 134 3. 340 5. 2834
Vocabulary and Readiness Check 1. number 3. sum; addend 5. grouping; associative
Exercise Set 1.3 1. 36 3. 292 5. 49 7. 5399 9. 117 11. 512 13. 209,078 15. 25 17. 62 19. 212 21. 94 23. 910 25. 8273 27. 11,926
29. 1884 31. 16,717 33. 1110 35. 8999 37. 35,901 39. 632,389 41. 42 in. 43. 25 ft 45. 24 in. 47. 8 yd 49. 29 in. 51. 44 m 53. 2093
55. 266 57. 544 59. 3452 61. 22,478 thousand 63. 6684 ft 65. 340 ft 67. 2425 ft 69. 313,769 motorcycles 71. 85,446 automobiles 73. 124 ft
75. 3170 77. California 79. 506 stores 81. Florida and Georgia 83. 5894 mi 85. answers may vary 87. answers may vary 89. 1,044,473,765
91. correct 93. incorrect:530

Section 1.4
Calculator Explorations 1. 770 3. 109 5. 8978
Vocabulary and Readiness Check 1. 0 3. minuend; subtrahend 5. 0 7. 600
Exercise Set 1.4 1. 44 3. 265 5. 135 7. 2254 9. 5545 11. 600 13. 25 15. 45 17. 146 19. 288 21. 168 23. 106 25. 447 27. 5723
29. 504 31. 89 33. 79 35. 39,914 37. 32,711 39. 5041 41. 31,213 43. 4 45. 20 47. 7 49. 72 51. 88 53. 264 pages
55. 3 million sq km 57. 264,000 sq mi 59. 283,000 sq mi 61. 6065 ft 63. 28 ft 65. 358 mi 67. $619 69. 452 thousand 71. 100 dB
73. 58 dB 75. 320 77. 5920 sq ft 79. Hartsfield Atlanta International 81. 26 million 83. Jo; by 271 votes 85. 1034 87. 9
89. 8518 91. 22,876 93. minuend: 48; subtrahend: 1 95. minuend: 70; subtrahend: 7 97. incorrect: 685 99. correct 101. 5269 - 2385 = 2884
103. no; answers may vary 105. no: 1089 more pages
Section 1.5
Vocabulary and Readiness Check 1. graph 3. 70; 60
Exercise Set 1.5 1. 420 3. 640 5. 2800 7. 500 9. 21,000 11. 34,000 13. 328,500 15. 36,000 17. 39,990 19. 30,000,000 21. 5280; 5300; 5000
23. 9440; 9400; 9000 25. 14,880; 14,900; 15,000 27. 84,000 members 29. 38,000 points 31. $43,000,000,000 33. $4,100,000 35. US: 263,000,000;
India: 297,000,000 37. 130 39. 80 41. 5700 43. 300 45. 11,400 47. incorrect 49. correct 51. correct 53. $3400 55. 900 mi 57. 6000 ft
59. Joliet is larger by approximately 60,000. 61. The increase was 2000. 63. 391,000,000; 390,000,000; 400,000,000 65. 349,000,000; 350,000,000;
300,000,000 67. 5723, for example 69. a. 8550 b. 8649 71. answers may vary 73. 140 m
Section 1.6
Calculator Explorations 1. 3456 3. 15,322 5. 272,291
Vocabulary and Readiness Check 1. 0 3. product; factor 5. grouping; associative 7. length
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Exercise Set 1.6 1. 24 3. 0 5. 0 7. 87 9. 6 3 + 6 8 11. 4 3 + 4 9 13. 20 14 + 20 6 15. 512 17. 3678 19. 1662 21. 6444
23. 1157 25. 24,418 27. 24,786 29. 15,600 31. 0 33. 6400 35. 48,126 37. 142,506 39. 2,369,826 41. 64,790 43. 3,949,935 45. 800
47. 11,000 49. 74,060 51. 24,000 53. 45,000 55. 3,280,000 57. area: 63 sq m; perimeter: 32 m 59. area: 680 sq ft; perimeter: 114 ft 61. 240,000
63. 300,000 65. c 67. c 69. 880 71. 4200 73. 4480 75. 375 cal 77. $3290 79. a. 20 b. 100 c. 2000 lb 81. 8800 sq ft 83. 56,000 sq ft
85. 5828 pixels 87. 2100 characters 89. 1280 cal 91. $10,$60;$10,$200;$12,$36;$12,$36;total cost:$372 93. 1,440,000 tea bags 95. 135
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97. 2144 99. 23 101. 15 103. 5 6 or 6 5 105. a. 5 + 5 + 5 or 3 + 3 + 3 + 3 + 3 b. answers may vary 107. 203 109. 42
111. answers may vary 113. 506 windows * 14 * 93
812
2030
2842
Section 1.7
Calculator Explorations 1. 53 3. 62 5. 261 7. 0
Vocabulary and Readiness Check 1. quotient; dividend; divisor 3. 1 5. undefined
Exercise Set 1.7 1. 6 3. 12 5. 0 7. 31 9. 1 11. 8 13. undefined 15. 1 17. 0 19. 9 21. 29 23. 74 25. 338 27. undefined 29. 9
31. 25 33. 68 R 3 35. 236 R 5 37. 38 R 1 39. 326 R 4 41. 13 43. 49 45. 97 R 8 47. 209 R 11 49. 506 51. 202 R 7 53. 54
55. 99 R 100 57. 202 R 15 59. 579 R 72 61. 17 63. 511 R 3 65. 2132 R 32 67. 6080 69. 23 R 2 71. 5 R 25 73. 20 R 2 75. 33 students
A1