| If y varies directly as x, and x = 9 when y = 15, find y when x = 33. |
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| If c varies directly as the square root of d, and c = 14 when d = 64, find c when d = 324. |
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| The cost of a pizza varies directly as the square of its radius. If a pizza with a 6 inch radius costs $8.00, how much should a pizza with an 11 inch radius cost? |
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| If p varies directly as the cube of q, and p = 26 when q = 2, find p when q = 5. |
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| The weight of an object on Earth varies directly as the weight of the same object on the moon. A 300 pound object would weigh 48 pounds on the moon. How much would a 65 pound object weigh on the moon? |
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| The distance required to stop a car varies directly as the square of its speed. If 250 feet are required to stop a car traveling 60 miles per hour, how many feet are required to stop a car traveling 96 miles per hour? |
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