SOLUTION: a passenger train's speed is 60 mi/h, and a freight train's speed is 40 mi/h. the passenger train travels the same distance in 1.5 h less time than the freight train. How long doe
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Question 158070This question is from textbook prentice hall mathematics algebra 1
: a passenger train's speed is 60 mi/h, and a freight train's speed is 40 mi/h. the passenger train travels the same distance in 1.5 h less time than the freight train. How long does each train take to make the trip?
This question is from textbook prentice hall mathematics algebra 1
Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
h=amount of hours
mph(h)=distance
the passenger train travels the same distance (set equal to each other) in 1.5 h less time than the freight train.
Simplify each side by multiplying
Eliminate the denominators, since they are the same thing
Subtract 60h from both sides
Divide both sides by -20
Passenger train: (h-1.5)
Freight train: (h)
Plug in 4.5 for h
4.5-1.5=3.0
---------------------------------------------------------
Answer:
Passenger train= 3 hours
Freight train= 4.5 hours
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