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a person bikes 2 1/2 miles at constant rate in 1/8 of an hour what distance , in miles , does the person bike in an hour

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Answer: The person bike 20 miles in an hour.

Explanation:

Given: At a constant speed, a person travels
2\frac12 miles in
\frac18 hour.

As
2\frac12=(2*2+1)/(2)=(5)/(2)

So, in
\frac18 hour, distance traveled =
\frac52 miles

As time and distance are proportional, Multiply 8 om both sides , we get

In 1 hour, distance traveled =
\frac52*8 miles


=5*4 miles= 20 miles

Hence, the person bike 20 miles in an hour.

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