document.write( "Question 1164958: qmy drove to a friends house at a rate of 45mph. She returned by the same route at a rate of 50mph. The driving time for the round trip was 4hrs. what is the total distance amy travelled. \n" ); document.write( "

Algebra.Com's Answer #789402 by josgarithmetic(39620) $\"\"$ $\"About$

You can put this solution on YOUR website!
d, the distance in one direction OR the other direction.
\n" ); document.write( "t, time for returning\r
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document.write( "           SPEED      TIME        DISTANCE\r\n" );
document.write( "GO          45         4-t         d=45(4-t)\r\n" );
document.write( "BACK        50          t          d=50t\r\n" );
document.write( "Total                   4\r\n" );
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\n" ); document.write( " $\"highlight_green%2845%284-t%29=50t%29\"$
\n" ); document.write( "Solve that for the time \"back\"
\n" ); document.write( " $\"highlight%28t=36%2F19%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Question asked for $\"2d\"$ .\r
\n" ); document.write( "\n" ); document.write( " $\"2%2A50%2A%2836%2F19%29=highlight%28189.5%29\"$ $\"miles\"$ \n" ); document.write( "

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