document.write( "Question 1158562: Billy and Kendall each drove to their grandmother’s house from their house. Billy left one
\n" ); document.write( "hour before Kendall. Billy drove at a rate of 45 mph. Kendall drove at a rate of 60 mph. How long will it take for Kendall to catch up to Billy?
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Algebra.Com's Answer #781528 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "In the hour that Billy drove at 45mph before Kendall started, Billy drove 45 miles.

\n" ); document.write( "Once Kendall started driving at 60mph, the rate at which he caught up to Billy was 60-45 = 15mph.

\n" ); document.write( "To make up the 45 miles at a rate of 15 miles per hour will take 45/15 = 3 hours.

\n" ); document.write( "If you need an algebraic solution....

\n" ); document.write( "When Kendall caught up to Billy, Kendall had driven x hours at 60mph and Billy had driven (x+1) hours at 45mph:

\n" ); document.write( "\"60%28x%29+=+45%28x%2B1%29\"

\n" ); document.write( "Solve using basic algebra.

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