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September 5, 2015

Homework Help: math

Posted by rock on Tuesday, August 2, 2011 at 12:30pm.

on his first exam, he studied for 10 hours and went to tell the mall for 4hours, and got a score of 85. how long should he study to get a grade of 96 and go to the mall for 17 hours?

grade varies directly with studying and inversely with going to the mall.

is the answer 48hrs?

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