document.write( "Question 853723: Car A leaves at 8 am at 40 mph. Car b leaves 2 hours later at 60 mph. How long does it take car b to up,to,car a? \n" ); document.write( "
Algebra.Com's Answer #514204 by mananth(16946)![]() ![]() You can put this solution on YOUR website! The distance travelled by the cars is the same when the second catches up with the first.\r \n" ); document.write( "\n" ); document.write( "Let the first car (A) take x hours for the distance\r \n" ); document.write( "\n" ); document.write( "distance traveled by car A = 40x\r \n" ); document.write( "\n" ); document.write( "Car B takes 2 hours less , (x-2) hours\r \n" ); document.write( "\n" ); document.write( "distance = 60(x-2)\r \n" ); document.write( "\n" ); document.write( "60(x-2)=40x\r \n" ); document.write( "\n" ); document.write( "60x-120=40x\r \n" ); document.write( "\n" ); document.write( "20x=120 \n" ); document.write( "x=6 hours\r \n" ); document.write( "\n" ); document.write( "Time taken by car B = (x-2) = 4 hours to catch up \n" ); document.write( " |