SOLUTION: jack rode his bike 10 miles in 30 minutes. What was his approximate speed in mph

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Question 893153: jack rode his bike 10 miles in 30 minutes. What was his approximate speed in mph
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Convert +30+ min to hours
( min ) x ( hrs / min ) = hrs
+30%2A%28+1%2F60+%29+=+1%2F2+ hrs
-------------------------
+d+=+r%2At+
+10+=+r%2A%28+1%2F2+%29+
+r+=+20+
His speed was 20 mi/hr