document.write( "Question 785611: Carlos made a trip to the train station and back. The trip there took 4 hours and the trip back took 5 hours. He averaged 7 mph faster on the trip there than on the return trip. What was Carly's average speed on the outbound trip? \n" ); document.write( "
Algebra.Com's Answer #477615 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Carlos made a trip to the train station and back. The trip there took 4 hours and the trip back took 5 hours. He averaged 7 mph faster on the trip there than on the return trip. What was Carly's average speed on the outbound trip? \n" ); document.write( "------- \n" ); document.write( "To the station DATA: \n" ); document.write( "time = 4 hrs ; rate = x mph ; distance = r*t = 4x miles \n" ); document.write( "------- \n" ); document.write( "From the station DATA: \n" ); document.write( "time = 5 hrs ; rate = x-7 mph ; distance = r*t = 5x-35 miles \n" ); document.write( "------- \n" ); document.write( "Equation: \n" ); document.write( "distance = distance \n" ); document.write( "4x = 5x-35 \n" ); document.write( "x = 35 mph (rate on the outbound trip) \n" ); document.write( "======================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "==================== \n" ); document.write( " |