document.write( "Question 421916: how fast must a car tavel to overtake a bus in 5 hours, if the bus is averaging 30 kilometers per hour and left 3 hours before the car \n" ); document.write( "
Algebra.Com's Answer #294587 by Gogonati(855)![]() ![]() You can put this solution on YOUR website! Solution: \n" ); document.write( " Denote x km/h the speed of the car. For 5 hours its traveling distance is \n" ); document.write( " 5*x km while the bus for 5 hours travel the distance: 5*30=150 km,since the bus \n" ); document.write( "left 3 hours before the car its total distance from the car is 150+3*30=240 km. \n" ); document.write( " The car overtake the bus when 5*x=240 where x=48 km/h.\r \n" ); document.write( "\n" ); document.write( "Answer:The car must move 48 km/h. \n" ); document.write( " |