document.write( "Question 698521: A car left Town A at 10:00am and travelled towards Town B at the average speed of 70 km/h. At the same timee a truck left Town B and travelled towards Town A over the same road at an average speed of 50 km/h. If the distance between Town A and Town B is 420km, at what time would the car and the truck pass each other? \n" ); document.write( "
Algebra.Com's Answer #430764 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! A car left Town A at 10:00am and travelled towards Town B at the average speed of 70 km/h. At the same timee a truck left Town B and travelled towards Town A over the same road at an average speed of 50 km/h. If the distance between Town A and Town B is 420km, at what time would the car and the truck pass each other? \n" ); document.write( "** \n" ); document.write( "let x=distance car traveled \n" ); document.write( "420-x=distance truck traveled \n" ); document.write( "travel time=distance/speed (same for car and truck) \n" ); document.write( ".. \n" ); document.write( "x/70=(420-x)/50 \n" ); document.write( "50x=70(420-x) \n" ); document.write( "50x=29400-70x \n" ); document.write( "120x=29400 \n" ); document.write( "x=245 \n" ); document.write( "travel time=x/70=3.5 hrs \n" ); document.write( "time car and truck pass each other: 1:30 pm \n" ); document.write( " |