SOLUTION: Please help, I am a mother trying to help my son with his school work but haven't had to do math in quite some time. Please describe how to answer the question. Thanks. A roll

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Question 308108: Please help, I am a mother trying to help my son with his school work but haven't had to do math in quite some time. Please describe how to answer the question. Thanks.
A roller coaster at Walt Disney World takes only 2 minutes and 21 seconds from launch to the end. If the average speed is 22 mph approximately what is the length of the ride in feet?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
there are 3600 seconds in an hour and 5280 feet in a mile

22 mph * (5280 / 3600) = 32.27 feet per sec (approx)

2 min and 21 sec is 141 sec

so the length of the ride is ___ 141 * 32.27 or 4550 feet (approx)