<PRE><B>Question 600840</B>
it took 8 hours to drive to your sisters house, how long would you estimate the drive to San Francisco? the distance to your sisters house is 418 miles, and the distance to San Francisco is 156 miles.
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time/distance = time/distance
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time/418 = 8/156
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time = 418[8/156]
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time = 21.44 hours
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Cheers,
Stan H.</PRE>