document.write( "Question 432517: From a point on a straight road, two cars are driven in opposite directions, one at 40 miles per hour and the other at 54 miles per hour. In how many hours will they be 282 miles apart? \n" ); document.write( "
Algebra.Com's Answer #299879 by rwm(914)![]() ![]() ![]() You can put this solution on YOUR website! r*t=d \n" ); document.write( "time will be the same for both cars \n" ); document.write( "add the two distances to get 282\r \n" ); document.write( "\n" ); document.write( "40t+54t=282 \n" ); document.write( "94t=282 \n" ); document.write( "t=3 hrs\r \n" ); document.write( "\n" ); document.write( "40*3=120 miles for the first car \n" ); document.write( "54*3=162 miles for the second faster car \n" ); document.write( " \n" ); document.write( " |