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December 19, 2014

December 19, 2014

Posted by **Anonymous** on Monday, August 3, 2009 at 9:10pm.

. The distance from Philadelphia to Sea Isle City is 100 mi. A car was driven this distance using tires with a radius of 14 in. How many revolutions of each tire occurred on the trip?

- math -
**bobpursley**, Monday, August 3, 2009 at 9:23pmThe distance around a tire is 2PI*14 inches, or 2PI14/12 feet.

100 miles is 100*5280 feet

So, number of revolutions is

(100*5280)/(2*PI*14/12)

In my head, I get about 72000 revolutions

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