Thursday

September 18, 2014

September 18, 2014

Posted by **Anonymous** on Friday, October 31, 2008 at 7:50pm.

A)8

B)4

C)2

D)1/2

E)1/4

- math -
**Damon**, Friday, October 31, 2008 at 7:59pmDiameter big wheel = D

diameter little wheel = D/2

In one revolution, the back wheel goes forward pi D

meanwhile the forward wheel also has to go forward pi D, which is 2 pi (D/2)

so the little wheel makes two revolutions for each of thew big wheel

- math -
**lilly**, Wednesday, April 9, 2014 at 4:03pmi dont knw

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