document.write( "Question 914160: Alan drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took
\n" ); document.write( "8
\n" ); document.write( " hours. When Alan drove home, there was no traffic and the trip only took
\n" ); document.write( "5
\n" ); document.write( " hours. If his average rate was
\n" ); document.write( "21
\n" ); document.write( " miles per hour faster on the trip home, how far away does Alan live from the mountains?
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Algebra.Com's Answer #554927 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
( average rate ) = ( total distance ) / ( total time )
\n" ); document.write( "Let \"+d+\" = total distance traveled
\n" ); document.write( "\"+21+=+d+%2F+13+\"
\n" ); document.write( "\"+d+=+13%2A21+\"
\n" ); document.write( "\"+d+=+273+\" mi
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\n" ); document.write( "The distance from the mountains is 1/2 the
\n" ); document.write( "total distance
\n" ); document.write( "\"+273%2F2+=+136.5+\"
\n" ); document.write( "Alan lives 136.5 miles from the mountains\r
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