document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1149559>Question 1149559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Monica left Montreal driving at 30 km/h.  Wendy left 2 h later and traveled the same road at 40 km/h.  At what distance from Montreal will Wendy overtake Monica?\r<BR>\n" );
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document.write( "use linear systems (substitution, elimination) </SPAN>\n" );
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document.write( "When Wendy left, Monica had been driving 2 hours at 30 km/h, so she had traveled 60 km.<br><BR>\n" );
document.write( "Monica travels 10 km/h faster than Wendy; since she needs to make up 60 km to overtake Wendy, it will take her 60/10 = 6 hours.<br><BR>\n" );
document.write( "Since she drives at 40 km/h, the distance from Montreal at which Monica overtakes Wendy is 4*60 = 240 miles.<br><BR>\n" );
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