document.write( "Question 1046151: You drive at an average of 30 miles per hour on the way to work, and at an average of 35 miles per hour on the way home. The total driving time is 30 minutes. How far away is work? Round your answer to the nearest hundredth of a mile. \n" ); document.write( "

Algebra.Com's Answer #661645 by josgarithmetic(39618) $\"\"$ $\"About$

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KNOWN:
\n" ); document.write( "g, rate going to work
\n" ); document.write( "b, rate returning from work
\n" ); document.write( "t, total driving time in HOURS
\n" ); document.write( "UNKNOWN:
\n" ); document.write( "d, distance between home and work\r
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\n" ); document.write( "\n" ); document.write( "Travel Rates Rule, RT=D to relate rate, time, distance\r
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document.write( "               SPEED       TIME       DISTANCE\r\n" );
document.write( "GOING            g                      d\r\n" );
document.write( "RETURN           b                      d\r\n" );
document.write( "TOTAL                       t          2d\r\n" );
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\r
\n" ); document.write( "\n" ); document.write( "Two time cells are not filled but they can be so using the basic travel rate rule.\r
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\r\n" );
document.write( "               SPEED       TIME       DISTANCE\r\n" );
document.write( "GOING            g                   d\r\n" );
document.write( "RETURN           b                   d\r\n" );
document.write( "TOTAL                       t          2d\r\n" );
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\n" ); document.write( "The obvious equation to make is $\"highlight%28d%2Fg%2Bd%2Fb=t%29\"$ and the only unknown variable is d, the variable which needs to be solved for. \n" ); document.write( "

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