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21 September, 11:07

How many full revolutions does a car tire with a diameter of 25 inches make when the car travels 1 mile

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  1. 21 September, 13:02
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    Answer: 806.72 full rotations.

    Step-by-step explanation: There are 5,280 ft in a mile (a good thing to have memorized) multiply that by 12 to find inches. 5280*12 = 63360. Then we divide this by the circumference of the circle. C = 2πr. The radius is half the diameter so C = dπ. 25π = 78.54. Then we divide 63360/78.54 = 806.72 rotations.
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