document.write( "Question 356544: A plane averaging 120 mi/h and an express train averaging 60 mi/h depart at the same time from the same city headed for the same destination.If the train arrives 45 min later than the plane, how far did they each travel? \n" ); document.write( "
Algebra.Com's Answer #254501 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A plane averaging 120 mi/h and an express train averaging 60 mi/h depart at the same time from the same city headed for the same destination.If the train arrives 45 min later than the plane, how far did they each travel? \n" ); document.write( "---------------- \n" ); document.write( "Plane DATA: \n" ); document.write( "rate = 120 mph ; time = x hrs ; distance = 120x miles \n" ); document.write( "--------------------------- \n" ); document.write( "Train DATA: \n" ); document.write( "rate = 60 mph ; time = x+(3/4) hrs ; distance = 60(x+(3/4) = 60x+45 miles \n" ); document.write( "----------------------- \n" ); document.write( "Equation: \n" ); document.write( "distance = distance \n" ); document.write( "120x = 60x+45 \n" ); document.write( "60x = 45 \n" ); document.write( "x = 3/4 hr \n" ); document.write( "----- \n" ); document.write( "Distance = 120x = 120(3/4) = 90 miles \n" ); document.write( "====================================== \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |