SOLUTION: If it takes 40 minutes to go 21 miles what is the miles per hour?

Question 1001797: If it takes 40 minutes to go 21 miles what is the miles per hour?
Found 2 solutions by Cromlix, rfer:
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
40 minutes = 0.67 hrs (2 decimal places)
21 miles/0.67 = 31.34 mph (2 decimal places)
Hope this helps :-)
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
40/21=60/x
40x=60*21
x=1260/40
x=31.5 mph
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