SOLUTION: Need help with setting up formula for: An express train is 19mph faster than a freight train. The express train travels 420 miles in the same time that it takes the freight train

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Question 156552: Need help with setting up formula for: An express train is 19mph faster than a freight train. The express train travels 420 miles in the same time that it takes the freight train to travel 300 miles. Find the speed of each train.
Answer by oscargut(686) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = speed of the express train
Let y = speed of the freight train
An express train is 19mph faster than a freight train.
then x=y%2B19
The express train travels 420 miles in the same time that it takes the freight train to travel 300 miles
then 420%2Fx+=300%2Fy