document.write( "Question 365863: A car is traveling 90 mph slower than a plane. If it takes the car 6 hours longer to cover the same distance than the plane in 3 hours, how fast is the plane going? \n" ); document.write( "
Algebra.Com's Answer #260761 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A car is traveling 90 mph slower than a plane. If it takes the car 6 hours longer to cover the same distance than the plane in 3 hours, how fast is the plane going? \n" ); document.write( "---------------- \n" ); document.write( "The car takes 9 hours for the plane's 3 hours, so the plane is 3 times as fast. \n" ); document.write( "c = car's speed \n" ); document.write( "3c = c+90 \n" ); document.write( "c = 45 \n" ); document.write( "plane's speed = 135 mph\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |