document.write( "Question 1153889: Dana has 3 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down. If she runs at a speed of 10mph and walks back at a speed of 2mph, how long should she plan to spend walking back?\r
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Algebra.Com's Answer #776211 by josgarithmetic(39620) $\"\"$ $\"About$

You can put this solution on YOUR website!
x, the speed walking back\r
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document.write( "           SPEED        TIME         DISTANCE\r\n" );
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document.write( "RUN          10          3-x            d\r\n" );
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document.write( "WALK          2          x              d\r\n" );
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document.write( "Total                    3\r\n" );
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\r
\n" ); document.write( "\n" ); document.write( " $\"highlight_green%2810%283-x%29=2x%29\"$ \r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( " $\"5%283-x%29=x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"15-5x=x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"15=6x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"5=2x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x=2%261%2F2%29\"$ $\"hours\"$ $\"walking\"$ \n" ); document.write( "

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