SOLUTION: How to solve this word problem? 2 cars started off in the same direction at the same time, but the first car was going twice as fast as the second car. In 5 hrs, the first car w

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: How to solve this word problem? 2 cars started off in the same direction at the same time, but the first car was going twice as fast as the second car. In 5 hrs, the first car w      Log On


   

Question 145396: How to solve this word problem?
2 cars started off in the same direction at the same time, but the first car was going twice as fast as the second car. In 5 hrs, the first car was ahead of the second car by 275 miles. How fast was going the second car?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
5x=5(2x)-275
5x=10x-275
5x-10x=275
-5x=-275
x=-275/-5
x=55 mph for the slower/second car.
proof:
5*55=10*55=-275
275=55-275
275=275