SOLUTION: The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at 30 miles per hour, how long will it take to drive th

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Question 1090051: The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at 30 miles per hour, how long will it take to drive the same distance at 50 miles per hour?
Found 2 solutions by addingup, Edwin McCravy:
Answer by addingup(3677)   (Show Source): You can put this solution on YOUR website!
2 hours at 30mph = 60 miles
60/50 = 1.2hours
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
If A varies inversely and B, then the rule is:



[Note for other problems, you might have: In other problems, it'll 
be "directly" instead of "inversely", and in those you'll change
the multiplications above to divisions.]













 of an hour is  hours or 1 hour and 12 minutes.

Edwin
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