Question 891663
The distance traveled can be represented by:

D=RT

Where:
D=Distance
R=Rate
T=Time

You know R, given in miles per hour
You know T, given in minutes

First, you need to make sure R and T are expressed in the same units, i.e. hours.
So convert T from minutes to Hours

T(hours)=T(minutes)/60
T(hours)=20/60

Now you can write the equation for D:

D=3(20/60)

D=60/60

D=1 Mile

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Good Luck,
tutor_paul@yahoo.com