course mth 151
7.23. equation
5. expression
6. equation
9. x-14
10. 8 * x
12. 8/x
15. ONE read the problem to make sure you know what is being asked. TWO give the unknown value a variable THREE write down a equation using the variable. FOUR work through the problem and solve. FIVE ask yourself if the answer seems right. SIX check your answer
18. r = -3
20. r = 3
21. r = -3
24. 387 thousand- Honda and 427 thousand- Toyota
25. n = 20 lost 20 and won 62
27. n = 44 55republicans and 44 democrats
30. n = 11
American airlines – 18
Southwest airlines - 26
United airlines – 11
33. 250 * .14 = 35
35. 10000 * .035 = 350
36. 25000 * .3 = 7,500
39. x = 4
40. x = 40
42. x = .11 11%
45. x = 4000 3%= 4000 4%=8000
48. x = 800 3.5%= 8000 4%= 29000
50. x = 5000 additional amount needed
51. x = 17 Pennies and dimes = 17 Quarters = 10
54. x = 450 $40- 450 tickets $28- 100 tickets
55. x = 54 Row 1 – 54 row 2 – 51
57. x = 28 .39 c = 18 .24c = 17
60. t= 500/161.794 t= 3.090
63. r= 100/12.37 r= 8.084
65. r= 400/47.63 r= 8.398
66. r = 400/44.00 r= 9.090
69. No because you want hours not min 45 (1/2) = 22.5 miles
70. A
72. t= 2.5
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