Thursday
November 27, 2014

Homework Help: math

Posted by Larry on Saturday, January 12, 2013 at 4:55pm.

Phil is making a 40-kilometer canoe trip. If he travels at 30 kilometers per hour for the first 10 kilometers, and then at 15 kilometers per hour for the rest of the trip, how many minutes more will it take him then if he travels the entire trip at 20 kilometers per hour?

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