SOLUTION: Two cars start at the same time, but travel in opposite directions. One car's average speed is 40 miles per hour (mph). At the end of 2 hours, the two cars are 140 miles apart. Fin
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: Two cars start at the same time, but travel in opposite directions. One car's average speed is 40 miles per hour (mph). At the end of 2 hours, the two cars are 140 miles apart. Fin
Log On
Question 1072761: Two cars start at the same time, but travel in opposite directions. One car's average speed is 40 miles per hour (mph). At the end of 2 hours, the two cars are 140 miles apart. Find the average speed in mph of the other car. (Enter an exact number.) Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! The first car's speed is 40 mph. 2 hours at that rate equals 80 miles. So:
140-80=60
60 miles/2 hours=30 mph as the rate of the second car. ☺☺☺☺