Carmen went on a trip of 120 miles, traveling at an average of x miles per hour. Several days later she returned over the same route at a rate that was 5 miles per hour faster than her previous rate. If the time for the return trip was one-third of an hour less than the time for the outgoing trip, which equation can be used to find the value of x?

A car travels from Twon A to Twon B at an average speed of 40 miles per hour, and returns immediately along the same route at an average speed of 50 miles per hour. What is the average speed in miles per hour for the round - trip?

A cheetah ran 12 miles at an average rate of 50 miles per hour and then ran the next 12 miles at an average rate of 43 miles per hour. What was the average speed, in miles per hour, of the cheetah for the 24 miles ?

A man drove to work at an average rate of speed of 60 miles per hour and returned over the same route driving at an average rate of speed of 40 miles per hour. If his total driving time was 1 hour, what was the total number of miles in the round trip?

An elephant traveled 7 miles at an average rate of 4 miles per hour and then traveled the next 7 miles at an average rate of 1 mile per hour. What was the average speed, in miles per hour, of the elephant for the 14 miles?

A bus diver drove at an average speed of 45 miles per hour for 3 hours while the bus consumed fuel at a rate of 15 miles per gallon. How many gallons of fuel did the bus use for the entire 3 - hour trip?

Steve ran a 12-mile race at an average speed of 8 miles per hour. If Adam ran the same race at an average speed of 6 miles per hour, how many minutes longer did Adam take to complete the race than did Steve?

The distance between cities A and B car travels from A to B at 60 miles per hour and returns from B to A long the same route at 40 miles per hour. What is the averge speed for the round trip?

Amy drove the 200 miles to New Orleans at at average speed 10 miles per hour faster than her usual average speed. If the complwrws the trip in 1 hour less than usual, what is her usual driving speed, in miles per hour?

A cyclist travels 20 miles at a second of 15 miles per hours. If he returns along the same path and the entire trip takes 2 hours, at what spped did he return?

Tina runs at a rate of 8 miles per hour. At that rate, how many miles will she run in 12 minutes?