document.write( "Question 186865: One day Eli set out for a trip across the lake on his motorboat at a rate of 8 mph. Along the way the motor broke down. Eli rowed back at a rate of 2 mph. He was gone for 5 hrs. How far did Eli row? \n" ); document.write( "
Algebra.Com's Answer #140141 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! One day Eli set out for a trip across the lake on his motorboat at a rate \n" ); document.write( " of 8 mph. Along the way the motor broke down. Eli rowed back at a rate of \n" ); document.write( " 2 mph. He was gone for 5 hrs. How far did Eli row? \n" ); document.write( ": \n" ); document.write( "Let d = distance he rowed (and distance he went before he broke down) \n" ); document.write( ": \n" ); document.write( "Write a time equation: Time = \n" ); document.write( ": \n" ); document.write( "Time motoring + time rowing = 5 hrs \n" ); document.write( " \n" ); document.write( "Multiply equation by 8: \n" ); document.write( "d + 4d = 8(5) \n" ); document.write( "5d = 40 \n" ); document.write( "d = \n" ); document.write( "d = 8 mi, he rowed his boat \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution by finding the times: \n" ); document.write( "8/8 = 1hr \n" ); document.write( "8/2 = 4hr \n" ); document.write( "----------- \n" ); document.write( "total 5 hr \n" ); document.write( " \n" ); document.write( " |