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

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donovansweat

Answer:

180/3 60  second

Step-by-step explanation:

21/7 = 3 feet per second
60 secconds
Explanation;
21 feet /7 secconds =3 secconds per foot.
180/3=60
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