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1. |
In Kendra's school, 2 out of every 5 seventh graders went to a movie theater over the weekend. If there are 80 students in the seventh grade, how many of them saw a movie? |
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A. |
36 |
B. |
28 |
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C. |
16 |
D. |
32 |
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Hint |
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2. |
Is   a proportion? Explain. |
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A. |
No, because 2 × 9  8 × 3. |
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B. |
Yes, because 2 × 9 = 8 × 3. |
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C. |
No, because 2 + 3 = 8 + 9. |
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D. |
Yes, because 2 × 3 = 8 × 9. |
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Hint |
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3. |
Solve  =  . |
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A. |
16 |
B. |
8 |
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C. |
6.125 |
D. |
32 |
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Hint |
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4. |
Find k if  =  . |
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A. |
2 |
B. |
60.5 |
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C. |
4.5 |
D. |
0.5 |
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Hint |
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5. |
Determine whether  =  form a proportion. Explain. |
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A. |
No, because 47.7 × 7 = 3 × 110.4. |
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B. |
No, because 47.7 × 7 3 × 110.4. |
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C. |
Yes, because 47.7 × 7 3 × 110.4. |
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D. |
Yes, because 47.7 × 7 = 3 × 110.4. |
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Hint |
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