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1. |
Determine whether the ratios  and  form a
proportion. Justify your answer. |
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A. |
No, they are unit rates. |
B. |
No, their cross products are not equal. |
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C. |
Yes, their cross products are equal. |
D. |
Yes, they are both percents. |
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Hint |
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2. |
Tell which proportion could be used to solve the problem. If a 20-minute long-distance call costs $2.75, how much does a similar 8-minute call cost? |
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A. |
 |
B. |
 |
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C. |
Both are correct |
D. |
Neither are correct |
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Hint |
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3. |
Solve  . |
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A. |
x = 28 |
B. |
x = 14 |
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C. |
x = 7 |
D. |
x = 35 |
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Hint |
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4. |
In a recent survey, 336 out of 500 people chose Reallygood Cola as their favorite soft drink. If a similar survey was conducted out of 2,000 people, how many people would chose Reallygood Cola as their favorite soft drink? |
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A. |
1,680 people |
B. |
672 people |
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C. |
1,000 people |
D. |
1,344 people |
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Hint |
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5. |
Boxes of cereal are marked 3 for $5.00. How much will 8 boxes of cereal cost? |
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A. |
$10.00 |
B. |
$9.33 |
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C. |
$13.33 |
D. |
$16.00 |
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Hint |
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