Question 569937
 On a road trip, five friends drove at 50 miles per hour to California. On the way home, they took the same route but drove 65 miles per hour. How many miles did they drive on the way to California if the trip took 10 hours?
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Let the distance be "x":
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Time = distance/rate
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Time out: x/50 hrs
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Time back: x/65 hrs
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x/50 + x/65 = 10 hrs
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65x + 50x = 65*50*10
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115x = 65*50*10
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x = 282.61 miles