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1. |
A concession stand at a baseball game sold 750 hot dogs for $1422.50. Plain hot dogs sell for $1.75 and hot dogs with chili sell for $2.25. How many plain hot dogs were sold? |
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A. |
220 |
B. |
385 |
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C. |
530 |
D. |
927.5 |
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Hint |
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2. |
The perimeter of a rectangle is 48 centimeters. What are the dimensions of the rectangle with the greatest area? |
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A. |
18 cm by 6 cm |
B. |
16 cm by 8 cm |
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C. |
14 cm by 10 cm |
D. |
12 cm by 12 cm |
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Hint |
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3. |
On four extra credit questions on a science test, students are given up to 5 points each, as long as their score does not go above 100 points. Assuming a student gets equal credit for all four extra credit questions, what are the minimum and maximum scores the student can receive if his score before the extra credit was 75? |
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A. |
80, 90 |
B. |
76, 99 |
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C. |
79, 100 |
D. |
75, 95 |
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Hint |
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4. |
The surface area of the rectangular solid below is the sum of the areas of its faces. If each edge is increased by 2 inches, how many time greater is the resulting surface area than the original surface area? |
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A. |
1.54 |
B. |
1.25 |
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C. |
1.41 |
D. |
1.36 |
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Hint |
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5. |
Isaac sold his old car, which averaged 24 miles per gallon of gasoline. He bought a new car that averages 32 miles per gallon. If he drives his car 14,000 miles this year, and gasoline cost about $1.59 per gallon, how much can expect to save in gasoline costs each year? |
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A. |
$695.63 |
B. |
$145.83 |
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C. |
$927.50 |
D. |
$231.87 |
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Hint |
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