document.write( "Question 921606: Lamar drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took
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Algebra.Com's Answer #559098 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Lamar drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 8 hours.
\n" ); document.write( "When Lamar drove home, there was no traffic and the trip only took 5 hours.
\n" ); document.write( "If his average rate was 21 miles per hour faster on the trip home, how far away does Lamar live from the mountains?
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\n" ); document.write( "From Home::
\n" ); document.write( "time = 8 hrs ; rate = x mph ; distance = 8x miles
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\n" ); document.write( "To Home::
\n" ); document.write( "time = 5 hrs ; rate = x+21 mph ; distance = 5(x+21) = 5x + 105 miles
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\n" ); document.write( "Equation:
\n" ); document.write( "8x = 5x + 105
\n" ); document.write( "3x = 105
\n" ); document.write( "x = 35 mph
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\n" ); document.write( "Ans: distance to mountains = 8x = 8*35 = 280 miles
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\n" ); document.write( "Cheers,
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