Question

Li can walk 2 miles in 45 minutes. at this rate,how far can she walk in 135 mintues

Answer 1

2 * 135/45 = 6 miles

Answer 2

Li can walk 6 miles

Explanation:

We can use proportions to solve this. Put miles over minutes

2 miles x miles

----------- = ---------------

45 minutes 135 minutes

Using cross products

2 * 135 = 45x

270 = 45x

Divide by 45

270/45 = 45x/45

6=x

Li can walk 6 miles