Homework Help: math (word problem)

Posted by emma on Tuesday, March 29, 2011 at 6:34pm.

Suppose a car tire has a diameter of 26 inches. How many rotations will thee tire make if the car travels 1 mile? Round to the nearest tenth.
If you get answer please show work of how to get there. Thanks!

math (word problem) - Ms. Sue, Tuesday, March 29, 2011 at 6:41pm
C = pi * d
C = 3.14 * 26
C = 81.64 inches

81.64 / 12 = 6.8 feet

5,280 / 6.8 = 776.47 = 776.5 revolutions

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