document.write( "Question 1201033: A car and a bust left regina at the same time. the car drove 480km west to calgary. the bus drove 570 km east to winnipeg. the bus travelled 15 km/hr faster than the car. they arrived at the destinations at the same time. what was the speed of the car ? what was the speed of the bus ? \n" ); document.write( "
Algebra.Com's Answer #835281 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The other tutor showed one formal algebraic method for solving the problem. \n" ); document.write( "If formal algebra is not required, here is a quick and easy informal solution. \n" ); document.write( "The times for the two vehicles are the same; so the difference in distances is equal to the difference in speeds, multiplied by that amount of time. \n" ); document.write( "The difference in distances was 570-480 = 90 km; the difference in speeds was 15 km/hr. That means the time for both vehicles was 90/15 = 6 hours. \n" ); document.write( "So the speed of the car was 480/6 = 80 km/hr and the speed of the bus was 570/6 = 95 km/hr. \n" ); document.write( "ANSWERS: \n" ); document.write( "car 80 km/hr \n" ); document.write( "bus 95 km/hr \n" ); document.write( " \n" ); document.write( " |