25-09-2018
Mathematics

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Mark bikes 4/10 of a mile in 1/5 of an hour. Find marks average speed in miles per hour. I’m desperate!!

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27-09-2018

Mark bikes 4/10 of a mile in 1/5 of an hour.

That is 4/10miles in 1/5hours

Average speed = Distance ÷ time

= 4/10 ÷ 1/5 = 4/10 ×5/1 = 2 miles/hour

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