Posted by **Kate** on Wednesday, December 12, 2012 at 9:42pm.

Can you help me set this up?

Mr. Smith could ride his 10-speed bike 4.8 miles to his mom's house in 11 minutes. His return trip home took 14 minutes. The times are different due to there being a slight downhill slope on part of the trip to his mom's house. If Mr. Smith was able to ride his bike on a flat surface with no hills, how fast can he travel in miles/hour?

Thank you!!!!

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