document.write( "Question 1140768: on a trip of 600km, zoe drove part of the way at 80km/h and the remainder at 90km/h. if the total trip took 7 hours, how far did she drive at each rate
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Algebra.Com's Answer #761270 by josgarithmetic(39625)\"\" \"About 
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document.write( "                SPEED      TIME           DISTANCE\r\n" );
document.write( "part1            80        (600-d)/80      600-d\r\n" );
document.write( "part2            90        d/90              d\r\n" );
document.write( "TOTAL                      7              600\r\n" );
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\n" ); document.write( "\"%28600-d%29%2F80%2Bd%2F90=7\"
\n" ); document.write( "Solve for d and evaluate 600-d. \n" ); document.write( "
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