course mth 151
7.3 3. 18 : 72 dollars
5. 12 : 6 feet
6. 60 : 144 yards
9. D
12. Fraction has to be multiply by lines, if you cross them you will get the wrong answer
15. false
18. false
20. 392 = 56z
7 = z
21. x = -1
24. p = - 6.2
25. 20 = k (16) y = (1.25) (24)
1.25 = k y = 30
27. 14 = k [ 8 ] y = 1.75 * 5
1.75 = k y = 8.75
30. 87.50 = k [ 7] y= 12.5 * 11
12.50 = k y = 137.50
33. 600 = k [ 2.4 ] 1000 = 250 (x)
250 = k 4 = x
35. 1040= k [ 8.5] 333 = 122.35 x
122.35 = k 3 = x
36. 912 = k [ 8.0] 1940 = 114 x
114 = k 17 = x
39. [ ¼ ] = k 1 10.5 = .25 x
.25 = k 2.625 = x
40. [ ½] = k 1 15.5 = .5 x
.5 = k 31. = x
42. 8 = k [ 84.30] 65 = .095 x
.095 = k 684.21 = x
45. 4-lb 1.78 = .445
10-lb 4.39 = .439 best buy
48. 2-oz 1.79 = .895
4-oz 2.59 = .6475 best buy
8-oz 5.59 = .69875
50. 8.5 oz .99 = .116
16.0 oz 1.87 = .111
33.8 oz 2.49 = .075
50.7 oz 2.99 = .059 best buy
51. 14 oz 1.39 = .099
24 oz 1.55 = .064
36 oz 1.78 = .049 best buy
64 oz 3.99 = .062
54. x=8
55. y=4 x=1
58. the candle is 53
60. 130.7 s = 120 ( 172.2)
130.7 s = 20664
S = 158
63. 27 = k [6] x = 4.5 * 2
4.5 = k x = 9
65. 20 = k [ 2 squared) m = 5 [ 5 squared]
5 = k m = 125
66. 48 = k 4 squared a = 3 [ 7 sqaured]
3 = k a = 147
69. y = 40.32
70. y = 15
72. y = 15
75. y = 100
78. y = 20
80. y = 33.33
84. x = 18.4
85. x = 10.9
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&#Please let me know if you have questions. &#