SOLUTION: This speed up a freight train is 15 mph slower then the speed of a passenger train. The freight train travels 350 Miles in the same time that it takes the passenger train to travel
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Question 850527: This speed up a freight train is 15 mph slower then the speed of a passenger train. The freight train travels 350 Miles in the same time that it takes the passenger train to travel 450 miles. Find the speed of each train. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! This speed up a freight train is 15 mph slower then the speed of a passenger train. The freight train travels 350 Miles in the same time that it takes the passenger train to travel 450 miles. Find the speed of each train.
:
Let s = the speed of the freight
then
(s+15) = speed of the pass
:
Write a time equation; time = dist/speed =
Cross multiply
450s = 350(s+15)
450s = 350s + 5250
450s - 350s = 5250
s = 5250/100
s = 52.5 mph is the speed of the freight
then
52.5 + 15 = 67.5 mph is the speed of pass train
