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1. |
If y varies inversely as x and y = 6 when x = 24, find x when y = 12. |
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A. |
12 |
B. |
144 |
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C. |
24 |
D. |
48 |
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Hint |
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2. |
Simplify . |
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A. |
5x |
B. |
2x |
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C. |
 |
D. |
 |
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Hint |
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3. |
Find . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
c + 2 |
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Hint |
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4. |
Find . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Express in simplest form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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6. |
Find . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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7. |
Find . |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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8. |
 |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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9. |
Solve . |
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A. |
7 |
B. |
-7 |
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C. |
7 or 2 |
D. |
-7 or 2 |
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Hint |
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10. |
If x varies inversely as y and the constant of variation is 24, what are x and y if it is true that x + y = 11? |
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A. |
3 and 8 |
B. |
6 and 4 |
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C. |
–3 and –8 |
D. |
–6 and –4 |
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Hint |
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11. |
State the excluded value(s) of . |
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A. |
–4, , 2 |
B. |
, 2 |
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C. |
–4, 3, 2 |
D. |
–4 |
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Hint |
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12. |
The speed of light is 3 × 108 meters per second. How fast is this in kilometers per hour? |
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A. |
1.8 × 107 km/hr |
B. |
8.3 × 107 km/hr |
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C. |
1.08 × 109 km/hr |
D. |
3 × 105 km/hr |
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Hint |
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13. |
Find . |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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14. |
Find . |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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15. |
Find . |
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A. |
y + 12 |
B. |
y – 9 |
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C. |
y + 9 |
D. |
y – 12 |
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Hint |
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16. |
A certain rectangle has a length of and a width of . What is the perimeter of the rectangle? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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17. |
Cynthia has earned 81 total points on quizzes, and she has averaged a on them. How many quizzes has she taken? |
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A. |
5 |
B. |
3 |
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C. |
7 |
D. |
6 |
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Hint |
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18. |
Juan and Sam have to complete 4 home repair jobs this week. If Juan works by himself, he can do the repairs in 7 days. With Sam helping him, they completed them in 3 days. How long would it take Sam to complete the repairs alone? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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