February 24, 2017

Homework Help: math

Posted by johnny on Thursday, July 30, 2009 at 4:22pm.

A family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip was decreased by 6 miles per hour and the trip took 2.5 hours longer. Determine their average speed on the way to the lodge.

Can someone help define a variable and write an equation?

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