ninfis39 ninfis39

04-12-2017
Mathematics

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A person on a moving sidewalk travel 21 feet in 7 seconds. The moving sidewalk has a length of 180 ft. how long will it take to move from one end of the sidewalk to the other

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04-12-2017

21 divided by 7 is 3. So every 3 seconds the person walks one foot. If you multiply that by 180 that is 540 seconds or 9 minutes.

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