Lisa ran 3 miles in 1 hour how long did it take lisa to run one mile

To run 1 mile it will take 1/3 of an hour or 20 minutes

Step-by-step explanation:

We can use ratios.  Take the number of miles and divide by the number of hours

3 miles         1 miles

=

1 hours         x hours

Using cross products

3x = 1 * 1

Divide each side by 3

3x/3  = 1/3

x = 1/3 hours

We know 1 hour = 60 minutes

1/3 of 1 hours = 1/3 *60 = 20 minutes

To run 1 mile it will take 1/3 of an hour or 20 minutes