document.write( "Question 1075558: Anna drove to her mother's house in two and a half hours. The next day because of traffic conditions her speed was about 18 km/h slower and consequently it took her three hours to drive home. What was her average speed driving home? \n" ); document.write( "
Algebra.Com's Answer #690199 by josgarithmetic(39618)\"\" \"About 
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document.write( "             SPEED    TIME   DISTANCE\r\n" );
document.write( "TO            r+18    2.5     d\r\n" );
document.write( "FROM          r       3       d\r\n" );
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\n" ); document.write( "\n" ); document.write( "\"%28r%2B18%29%282.5%29=3r\"---------Just solve this for r.
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