document.write( "Question 880552: Alexander and Judy are 32 miles apart on a calm lake paddling toward each other. Alexander paddles at 5 miles per hour, while Judy paddles at 8 miles per hour. how long will it take them to meet? \n" ); document.write( "
Algebra.Com's Answer #531555 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Alexander and Judy are 32 miles apart on a calm lake paddling toward each other. Alexander paddles at 5 miles per hour, while Judy paddles at 8 miles per hour. how long will it take them to meet? \n" ); document.write( "*** \n" ); document.write( "let x=distance alex traveled \n" ); document.write( "32-x=distance judy traveled \n" ); document.write( "travel time=distance/speed (same for both) \n" ); document.write( " \n" ); document.write( "8x=5(32-x)=160-5x \n" ); document.write( "13x=160 \n" ); document.write( "x=160/13 \n" ); document.write( "travel time(for alex)=x/5=(160/13)/5≈2.46 hr \n" ); document.write( "travel time(for judy)=(32-x)/8=(32-(160/13))/8≈2.46 hr \n" ); document.write( "how long will it take them to meet? 2.46 hrs \n" ); document.write( " |