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2 February, 12:37

The tires on a certain car are 25 inches in diameter if the car is moving at a constant speed of 65 mph how many rotations is the front left tire making (1 mile = 5280 feet)

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  1. 2 February, 12:48
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    The circumference of the tire is 25pi, and converting that to ft would be 2 1/12, so each mile (5280 feet), the tire makes 806.7245755441991

    Rotations (in ft) per mile.

    Because 2 1/12 times pi = 6.544984694978736, and 5280 (1mile) divided by that is about 806.7 rotations per mile
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