math 40 prealgebra section 5.1-5.7 homework key · 2019-05-30 · math 40 prealgebra section...
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Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
1 2015 Worrel
Section 5.1
1. 4,552.0908 2. 7,881.6127
3. 4,408.2148 4. 9,279.0075
5. 2,709.5097 6. 1,743.1634
7. 3,501.4456 8. 9,214.3625
9. 5,705.2193 10. 7,135.2755
11. 8,129.3075 12 6,971.4289
13. Nine thousand, eight hundred thirty-seven ten-thousandths
14. Six thousand, eight hundred seventy-nine ten-thousandths
15. One thousand, nine hundred two and two thousand six hundred fifty-three ten-thousandths
16. One hundred sixty-seven and eight thousand nine hundred thirty-four ten-thousandths
17. Nine hundred twenty-five and forty-seven hundredths
18. Nine hundred seventy-four and thirty-five hundredths
19. Eighty-three and four hundred twenty-seven thousandths
20. Thirty-two and seven hundred fifty-nine thousandths
21. Sixty-three and seven hundred twenty-nine thousandths
22. Eighty-five and three hundred twenty-seven thousandths
23. Eight hundred twenty-six and fifty-seven hundredths
24. Three hundred eighty-four and seventy-two hundredths
25. 87
10 26.
31
10
27. 547
100 28.
527
100
29. 2133
1000 30.
2893
1000
31. 39
10 32.
1271
1000
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
2 2015 Worrel
33. 7
20 34.
19
50
35. 3
50 36.
21
25
37. 49
50 38.
22
25
39. 18
25 40.
39
50
41. 79.37 42. 54.80
43. 71.243 44. 59.213
45. 29.4 46. 42.8
47. 89.303 48. 9.005
49. 20.7 50. 54.0
51. 19.85 52. 49.40
53. 0.30387617 0.3036562 54. 8.5934 8.554
55. 0.034 0.040493 56. 0.081284 0.08118
57. 8.3527 8.36553 58. 0.00786 0.0051385
59. 18.62192 18.6293549 60. 514.873553 514.86374
61. 36.8298 36.8266595 62. 0.000681 0.00043174
63. 15.188392 15.187157 64. 0.049785 0.012916
65.
Material Index
of
Refracti
on
Vacuum 1.0000
Air 1.0003
Ice 1.31
Water 1.333
Plexiglas 1.51
Crown Glass 1.52
Zircon 1.923
Diamond 2.417
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
3 2015 Worrel
Section 5.2
1. 116.6 2. 17.09
3. 101.18 4. 5.089
5. 91.502 6. 121.49
7. 103.45 8. 25.7
9. 58.641 10. 37.896
11. 6.86 12. 47.9
13. 6.739 14. 90.87
15. 74.9 16. 3.126
17. 52.372 18. 3.08
19. 54.575 20. 6.23
21. 35.3 22. 4.51
23. 5.98 24. 6.575
25. −26.13 26. −87.8
27. − 70.72 28. − 31.04
29. −90.914 30. −14.61
31. 1.643 32. 70.91
33. −42.8 34. −85.5
35. −41.1 36. −2.25
37. − .51 38. − 9.01
39. −8.504 40. −6.88
41. −6.47 42. −5 2 . 6 7
43. 77.72 44. 14.4
45. 7.501 46. −23.53
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
4 2015 Worrel
47. − 2.201 48. − 7.421
49. − .39 50. − 80.64
51. −6.895 52. −101.84
53. −58.27 54. −31.285
55. −54.983 56. −43.07
57. −4.314 58. 70.037
59. 4.365 60. 6.853
61. 10.062 62. 117.679
63. −105.75 64. −5.467
65. −47.04 66. 1.16
67. 12.37 68. −2.7
69. −37.96 70. −2.19
71. 19.75 72. 23.87
73. −19.85 74. −18.5
75. 8.96 76. 27.3
77. −24.99 78. −2.34
79. 17.13 80. 5.42
81. $328.3 Billion 82. 3.6 ft
83. 32.9 degrees fahrenheit
84. 33.3 degrees fahrenheit
85. 2.6 billion
86. .07 million tons
87. .04 million people
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
5 2015 Worrel
Section 5.3
1. .201 2. .48
3. 170.51 4. 70.35
5. 18.86 6. 21.32
7. 30.12 8. 12.84
9. 6.282 10. .0844
11. 190.491 12. 58.354
13. 42.57 14. 12.28
15. 66.33 16. 43.92
17. 154.05 18. 386.26
19. 2.07 20. 5.39
21. 134.493 22. 52.1152
23. .0696 24. .3584
25. 20.234 26. 11.844
27. 30.876 28. 10.237
29. −.6587 30. −1.78
31. 6.66 32. −.345
33. −30.34 34. 49.5
35. −88.452 36. −58.468
37. − 16.64 38. −10.12
39. 31.44 40. −2.308
41. −1.262 42. 40.88
43. −281.48 44. −216.63
45. −3,899.75 46. 187.96
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
6 2015 Worrel
47. 149.28 48. 195.16
49. .175 50. .065
51. −.204 52. .748
53. −42.955 54. −8.148
55. −79.211 56. −313.12
57. 242.64 58. 6,572.2
59. 538,670 60. 232,160
61. 5,096 62. 60,890
63. 37,968 64. 43,552
65. 6,130.3 66. 83,837
67. 74,896 68. 3,072.8
Section 5.4
1. .75 2. .64
3. 9.1 4. 5.4
5. 4.5 6. 1.8
7. .44 8. .28
9. .53 10. .66
11. 1.5 12. 4.4
13. .68 14. .24
15. 4.5 16. 7.3
17. .74 18. .47
19. .77 20. .56
21. 8.9 22. 6.7
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
7 2015 Worrel
23. 2.7 24. 8.5
25. 5.8 26. 9.7
27. 9.2 28. 1.6
29. .93 30. .47
31. .98 32. .59
33. 2.4 34. 7.5
35. 6.8 36. 3.6
37. .73 38. .65
39. .38 40. .57
41. 6.9 42. 5.9
43. .54 44. .66
45. .48 46. .41
47. .36 48. .87
49. 3.3 50. 6.5
51. 7.6 52. 7.2
53. 2.4 54. 2.7
55. .19 56. .91
57. .14 58. .93
59. .57 60. .52
61. 8.4 62. 9.1
63. 2.2 64. 9.2
65.5.2435 66. 8.4939
67. .56394 68. .88415
69. 1.1681 70. .57801
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
8 2015 Worrel
71. 69.455 72. 5.7868
73. .34116 74. .004663
75. .11302 76. .52077
77. .6 78. .5
79. .9 80. .2
81. .07 82. .07
83. .05 84. .04
85. .10 86. .07
87. .2 88. .6
Section 5.5
1. 3.6875 2. 3.8
3. 8.75 4. 5.25
5. .0625 6. 2.8
7. .75 8. 1.75
9. 1.5 10. .9375
11. .68 12. .5
13. 1.125 14. 2.5
15. .325 16. 1.5625
17. 2.5 18. .5
19. .375 20. 1.44
21. 1.42 22. 1.48
23. 30.3 24. 8.1
25. .736 26. .91
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
9 2015 Worrel
27. 5.06 28. 2.5
29. .50 30. .53
31. 4.06 32. 2.05
33. 1.48 34. .924
35. .38 36. .257
37. .86 38. 1.805
39. 25.3 40. .73
41. .13 42. 2.96
43. .712 44. .207
45. 5.65 46. 1.23
47. 6.71 48. 1.55
49. 7.71 50. 4.45
51. 6.45 52. 7.8
53. 26
15 54.
107
150
55. 124
75 56.
35
24
57. 7
30 58.
17
30
59. 19
15 60.
22
15
61. 77
24 62.
133
60
63. 383
9.57540
or 64. 401
10.02540
or
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
10 2015 Worrel
65. 1
.52
or 66. 237
4.7450
or
67. 35
24 68.
17
30
Section 5.6
1. 1.75x 2. .5x
3. 1.3x 4. .25x
5. 13x 6. 451.6x
7. 339.2x 8. 804x
9. 8x 10. 34x
11. 1.08x 12. .2x
13. 11.25x 14. 2.5x
15. 3.4x 16. 1.72x
17. 5x 18. 3x
19. 2.17x 20. 16.98x
21. 16.8x 22. 2.9x
23. 13x 24. 1.6x
25. 20.14x 26. 7.44x
27. .4x 28. .6x
29. 4x 30. 2x
31. 3.8x 32. 5.6x
33. .82x 34. 3.75x
35. 43.1x 36. 4.1x
37. 13.56x 38. 15.4x
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
11 2015 Worrel
39. 2.5x 40. 19.49x
41. 26.5x 42. 144.9x
43. 45.75x 44. 1.27x
45. 11.54x 46. 18.3x
47. 8.6x 48. 2,205.1x
49. 2.8x 50. 12.58x
51. 3.82x 52. 90.95x
53. 2.59x 54. 3.25x
55. 2.9x 56. 2.4x
57. 3x 58. 3.8x
For problems 59-81make sure to do the five step word problem method like it is shown in the
book. These are just the answers.
59. 32 bird houses 60. 36 curtains
61. 24 staplers 62. 16 CD packs
63. 44 table cloths 64. 46 quilts
65. 19.10 ft 66. 14.01 ft
67. 235 children’s tickets 68. 240 children’s tickets
69. 29 mechanical pencils 70. 24 engineering templates
71. 19.42 ft 72. 27.37 ft
73. 13.3m 74. 26.9 m
75. 288 children’s tickets 76. 168children’s tickets
77. 16.9m 78. 43.9 m
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
12 2015 Worrel
79. 357.7 million 80. 1.35 million
81. 1.9
Section 5.7
1. -16 and 16 2. -19 and 19
3. none 4. none
5. -21 and 21 6. -6 and 6
7. -18 and 18 8. 0
9. -12 and 12 10. -10 and 10
11. none 12. none
13. -11 and 11 14. None
15. -23 and 23 16. -20 and 20
17. no real solution 18. no real solution
19. 24 20. 17
21. no real solution 22. no real solution
23. 5 24. 15
25. 22 26. 6
27. 14 28. 17
29. 21 30. 18
31. 2 32. 10
33. 0.9 34. 2.3
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
13 2015 Worrel
35. 1.9 36. 0.3
37. 15
4 38.
10
9
39. 1.8 40. 2.4
41. 11
7 42.
25
18
43. 23
11 44.
2
11
45. 1.7 46. 2.1
47. 12
5 48.
7
6
49. 16
19 50.
23
4
51. 0.7 52. 2.2
53. 18 54. 170
55. 17 56. 25
57. 21 58. 195
59. 13 60. 25
61. 5 62. 10
63. 150 64. 232
65. 73 66. 24
67. 135 68. 145
69. 2 70. 112
Math 40
Prealgebra Section 5.1-5.7 HOMEWORK KEY
14 2015 Worrel
71. ) 7 8
) 7.62
a between and
b 72.
) 5 6
) 5.20
a between and
b
73. ) 8 9
) 8.89
a between and
b 74.
) 3 4
) 3.46
a between and
b
75. ) 6 7
) 6.63
a between and
b 76.
) 9 10
) 9.38
a between and
b
77. ) 21 22
) 21.66
a between and
b 78.
) 8 9
) 8.54
a between and
b
79. ) 24 25
) 24.80
a between and
b 80.
) 12 13
) 12.73
a between and
b
81. ) 21 22
) 21.07
a between and
b 82.
) 14 15
) 14.93
a between and
b