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I drove to the beach at a rate of 40 miles per hour.  If I had driven at a rate of 32 mies per hour instead, then I would have arrived 28 minutes later.  How many miles did I drive?

 Nov 6, 2021
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x/40  +   28 / 60   =   x/32                  28/60 is the fraction of an hour represented by 28 minutes

 

x/32 - x/40 = 28 / 60      solve for x  = the number of miles

 Nov 7, 2021

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