SOLUTION: if a person rides his bike 112 miles in 3 hours and 39 minutes, what is his average miles per hour?

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Question 811128: if a person rides his bike 112 miles in 3 hours and 39 minutes, what is his average miles per hour?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+d+=+r%2At+
( miles ) = ( miles / hr ) x ( hrs )
------------
+39+ min = +39%2F60+ hrs
+112+=+r%2A%28+3+%2B+39%2F60+%29+
+112+=+r%2A%28+3+%2B+13%2F20+%29+
+112+=+r%2A%28+3.65+%29+
+r+=+112+%2F+3.65+
+r+=+30.685+
The average speed is 30.685 mi/hr