Algebra
posted by Francessca .
The speed of a passenger train is 20 mph faster than the speed of a freight train. The passenger train travels 250 miles in the same time it takes the freight train to travel 150 miles. find the speed of each train.

Algebra 
drwls
V = slower train speed
V + 20 = faster train speed
T = number of hours required by both
V*T = 150
(V + 20)*T = 250
V*T + 20T = 250
20 T = 100
T = 5 hours
V = 150/T = 30 mph
faster train speed = V + 20 = 50 mph
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