document.write( "Question 1202478: The cross-country team left school and trotted to the duck pond at 3 mph. Then they ran back to the school at 7 mph. If the total trip took 10 hours, how far was it to the duck pond? \n" ); document.write( "

Algebra.Com's Answer #837348 by josgarithmetic(39630) $\"\"$ $\"About$

You can put this solution on YOUR website!
Going to, speed $\"V%5B1%5D\"$
\n" ); document.write( "Returning, speed $\"V%5B2%5D\"$
\n" ); document.write( "Total Trip time, $\"T\"$
\n" ); document.write( "distance either direction, d
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\n" ); document.write( " $\"system%28V%5B1%5D=3%2CV%5B2%5D=7%2CT=10%29\"$ \r
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\r\n" );
document.write( "             SPEEDS         TIME                DISTANCE\r\n" );
document.write( "\r\n" );
document.write( "GOING                                   d\r\n" );
document.write( "\r\n" );
document.write( "RETURN                                  d\r\n" );
document.write( "\r\n" );
document.write( "Total                          \r\n" );
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\n" ); document.write( " $\"T=d%2FV%5B1%5D%2Bd%2FV%5B2%5D\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"T=d%281%2FV%5B1%5D%2B1%2FV%5B2%5D%29\"$ \r
\n" ); document.write( "\n" ); document.write( "multiply both sides by $\"V%5B1%5DV%5B2%5D\"$ ;\r
\n" ); document.write( "\n" ); document.write( " $\"TV%5B1%5DV%5B2%5D=d%28V%5B2%5D%2BV%5B1%5D%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight_green%28d=T%28V%5B1%5DV%5B2%5D%29%2F%28V%5B2%5D%2BV%5B1%5D%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "To evaluate with your given values
\n" ); document.write( " $\"d=%2810%2A3%2A7%29%2F%287%2B3%29\"$
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\n" ); document.write( " $\"d=21\"$ \n" ); document.write( "

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