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 #655162 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "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( "

Let distance be D
\n" );
document.write( "Speed to mountains: , and speed home = 
\n" );
document.write( "We then get the following SPEED equation: 
\n" );
document.write( "2D = 3D - 480------- Multiplying by LCD, 24
\n" );
document.write( "2D – 3D = - 480
\n" );
document.write( "D, or distance = , or  \n" );
document.write( "

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