document.write( "Question 1123151: Kathryn went to the study group traveling 25 mph and returned home traveling 20 mph. If the total trip took 9 hours, how long did Kathryn travel at each speed? \n" ); document.write( "
Algebra.Com's Answer #739410 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! x hours at 25 mph or 25x miles \n" ); document.write( "9-x hours at 20 mph or 20(9-x) miles\r \n" ); document.write( "\n" ); document.write( "The distances are equal \n" ); document.write( "25x=180-20x \n" ); document.write( "45x=180 \n" ); document.write( "x=4 hours \n" ); document.write( "at 25 mph, 100 miles\r \n" ); document.write( "\n" ); document.write( "9-x=5 hours \n" ); document.write( "at 20 mph, 100 miles \n" ); document.write( " |