document.write( "Question 1022853: Two cars Start at the same time, but travel in opposite directions. One car is average speed is 70 mph at the end of four hours the two cars are 400 miles apart. Find the average speed in mph of the other car. \n" ); document.write( "
Algebra.Com's Answer #638488 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "If the average speed of one car
\n" ); document.write( "is 70 mph. Then in 4 hours it will
\n" ); document.write( "have traveled 280 miles.
\n" ); document.write( "400 - 280 = 120
\n" ); document.write( "120/4 = 30 mph
\n" ); document.write( "This is the speed of the other car.
\n" ); document.write( "Hope this helps :-)
\n" ); document.write( "
\n" );