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May 28, 2015

Homework Help: Algebra

Posted by Rose on Saturday, November 3, 2007 at 12:33pm.

Mrs. Lewis plans to drive 900 miles to her vacation destination, driving an average 50 miles per hour. How many miles per hour faster must she average, while driving, to reduce her total driving time by 3 hours?

I'm not sure how to set up the equation. Thanks.

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