Question 1110223: A child is running on a moving sidewalk in an airport. When she runs against the sidewalk's motion, she travels
50ft
in
10
seconds. When she runs with the sidewalk's motion, she travels
91ft
in
13
seconds. What is the rate of the child on a still sidewalk and what is the rate of the moving sidewalk?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! A child is running on a moving sidewalk in an airport. When she runs against the sidewalk's motion, she travels 50ft in 10 seconds.
When she runs with the sidewalk's motion, she travels 91ft in 13 seconds.
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What is the rate of the child on a still sidewalk and what is the rate of the moving sidewalk?
Find the 2 speeds, with and against the motion.
Her speed is the average of the 2.
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The s/w speed is the difference between her speed and either of the other 2.
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