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May 24, 2015

Homework Help: Math

Posted by Brandon on Friday, November 30, 2007 at 3:22pm.

Please review.

Ella can drive 65 mi on side roads in the same time that it takes to drive 30 mi on the interstate. Ella's rate on the side roads is 7 mi faster than her rate on the interstate, what is her rate on the side roads?

65/x+7=30/x
35x=210
x=6

6+7=13

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