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a freight train and a passenger train leave Portland at the same time on parallel tracks heading for springfield. the passenger train goes 30 mi/HR faster than the freight train, and in 6hr the passenger train travels three times farther. what is the speed of each train?

Respuesta :

We have the next information

x= speed of the passengers train

y=speed of the freight train

x=y+30

x=3y

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