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The answer would be that she could walk 3.75 miles in 1 hour. I got this by dividing the time and distance in half, saying that she could do 1.25 miles in 20 minutes, so i added that to the 40 minutes so that it was 3.75 miles in 60 minutes or 1 hour.

The distance travel Rachelle in 1 hour (60 minutes) will be 3.75 miles.

What is speed?

The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the speed formula

Speed = Distance/Time

Rachelle can walk 2.5 miles in 40 minutes.

Then the speed will be

Speed = 2.5 / 40

Speed = 0.0625 miles per minute

At this rate, distance travel Rachelle in 1 hour (60 minutes) will be

0.0625 = d / 60

d = 3.75 miles

The distance travel Rachelle in 1 hour (60 minutes) will be 3.75 miles.

More about the speed link is given below.

https://brainly.com/question/7359669

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