document.write( "Question 1040343: Raina drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took
\n" ); document.write( "12
\n" ); document.write( " hours. When Raina drove home, there was no traffic and the trip only took
\n" ); document.write( "8
\n" ); document.write( " hours. If her average rate was
\n" ); document.write( "20
\n" ); document.write( " miles per hour faster on the trip home, how far away does Raina live from the mountains? \n" ); document.write( "

Algebra.Com's Answer #655150 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "                RATE         TIME         DISTANCE\r\n" );
document.write( "GOING            r            x            d\r\n" );
document.write( "RETURN           r+k          t            d\r\n" );
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document.write( "

\r
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\n" ); document.write( "\n" ); document.write( "Travel Rates Rule is RT=D relating RATE, TIME, and DISTANCE.\r
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\n" ); document.write( "\n" ); document.write( " $\"system%28rx=d%2C%28r%2Bk%29t=d%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"rx=%28r%2Bk%29t\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"rx=rt%2Bkt\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"rx-rt=kt\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"r%28x-t%29=kt\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"highlight_green%28r=%28kt%29%2F%28x-t%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "--substitute into this one:\r
\n" ); document.write( "\n" ); document.write( " $\"d=rx\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"d=%28%28kt%29%2F%28x-t%29%29x\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"highlight%28d=%28kxt%29%2F%28x-t%29%29\"$
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