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September 16, 2014

September 16, 2014

Posted by **Anonymous** on Wednesday, January 26, 2011 at 2:55pm.

- math -
**Ms. Sue**, Wednesday, January 26, 2011 at 3:09pm15/3 = 5

It will take him 5 times 20 minutes to finish.

You could also set up a proportion. Cross multiply and solve for x.

3/20 = 15/x

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