SOLUTION: A train travels 80 mi in the same time that a light plane can travel 280 mi. If the speed of the plane is 100 mi/h faster than that of the train, find each of the rates.

Question 964014: A train travels 80 mi in the same time that a light plane can travel 280 mi. If the speed of the plane is 100 mi/h faster than that of the train, find each of the rates.
Answer by josgarithmetic(39623) (Show Source): You can put this solution on YOUR website!
________________rate____________time____________distance
train___________r________________t_______________U
plane___________r+k______________t_______________V

RT=D rate time distance relationship for rate, time, distance, uniform travel rates rule.

KNOWN:
U=80
V=280
k=100
UNKNOWN:
r, t.

------solution formula for r, the rate for the train.
-
Substitute the given values to evaluate r.

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