document.write( "Question 898288: Bob 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 Bob 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 Bob live from the mountains?
\n" ); document.write( "Do not do any rounding. \n" ); document.write( "
Algebra.Com's Answer #544733 by lwsshak3(11628)\"\" \"About 
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Bob 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 Bob 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 Bob live from the mountains?
\n" ); document.write( "Do not do any rounding.
\n" ); document.write( "***
\n" ); document.write( "let x=rate of speed on the way to mountains
\n" ); document.write( "x+21=rate of speed on the way home
\n" ); document.write( "travel time*rate=distance
\n" ); document.write( "8x=5(x+21)
\n" ); document.write( "8x=5x+105
\n" ); document.write( "3x=105
\n" ); document.write( "x=35
\n" ); document.write( "8x=280
\n" ); document.write( "how far away does Bob live from the mountains? =280 miles\r
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