document.write( "Question 645229: Micheal drove to a friends house at a rate of 40 mi/h. He returned by the same route at a rate of 45 mi/h. The driving time for the round trip was 4 h. What is the distance Michael traveled. \n" ); document.write( "
Algebra.Com's Answer #405399 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Micheal drove to a friends house at a rate of 40 mi/h. He returned by the same route at a rate of 45 mi/h. The driving time for the round trip was 4 h. What is the distance Michael traveled. \n" ); document.write( "------------ \n" ); document.write( "Avg speed for the round trip = 2*40*45/(40+45) = 3600/85 mi/hr \n" ); document.write( "Avg speed = 720/17 mi/hr \n" ); document.write( "----- \n" ); document.write( "d = r*t \n" ); document.write( "d = (720/17)*4 = 2880/17 miles round trip \n" ); document.write( " |