document.write( "Question 1130964: Jessie recently drove to visit her parents who live 510 miles away. On her way there her average speed was 11 miles per hour faster than on her way home (she ran into some bad weather). If Jessie spent a total of 17 hours driving, find the two rates. \n" ); document.write( "

Algebra.Com's Answer #747572 by josgarithmetic(39627) $\"\"$ $\"About$

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document.write( "                SPEED        TIME         DISTANCE\r\n" );
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document.write( "GOING            r+11        510/(r+11)     510\r\n" );
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document.write( "RETURNING        r           510/r          510\r\n" );
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document.write( "TOTAL                        17\r\n" );
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\n" ); document.write( " $\"510%2F%28r%2B11%29%2B510%2Fr=17\"$ \r
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\n" ); document.write( "\n" ); document.write( ".
\n" ); document.write( " $\"r%5E2-49r-330=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"discriminant\"$ , $\"61%5E2\"$ ;\r
\n" ); document.write( "\n" ); document.write( " $\"r=%2849%2B61%29%2F2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28r=55%29\"$ ------the speed returning
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