ts3tefaytobaker ts3tefaytobaker

25-12-2016
Mathematics

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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 wil it take to move from one end of the sidewalk to the other

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KateBlake KateBlake

25-12-2016

21 feet per 7 seconds = 21 ÷ 7 = 3 ft/s

180 ft ÷ 3ft/s = 60 seconds! (1 minute)

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