SOLUTION: a train travels 30 mph faster than a caar. if the train covers 120 miles in the same time the car covers 80 miles, what is the speed of each vehicle
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Question 375650: a train travels 30 mph faster than a caar. if the train covers 120 miles in the same time the car covers 80 miles, what is the speed of each vehicle Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! SPEED OF CAR BE X MPH
TRAIN = X+30 MPH..
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train distance = 120 miles
car distance = 80 miles
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\..
train time = car time
multiply the equation by x*(x+30)
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120x= 80(x+30)
120x=80x+2400
-80x
120x-80x=2400
40x=2400
/40
x= 2400/40
x= 60 mph speed of car
speed of train = x+30 = 60+30 = 90 mph
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m.ananth@hotmail.ca
