<PRE><B>Question 470111</B>
five friends drove 60 miles per hour to California. on the way home they took the same route but drove 75 miles per hour. how many miles did they drive to California if the round trip took 10 hrs.
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To DATA:
distance = x miles ; rate = 60 mph ; time = d/r = x/60 hrs.
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From DATA:
distance = x miles ; rate = 75 mph ; time = d/r = x/75 hrs.
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Equation:
x/60 + x/75 = 10 hrs
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75x + 60x = 10*60*75
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x = 333 1/3 miles (distance to CA)
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Cheers,
Stan H.
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