Question

Gary can ride his bike 6 miles in 20 minutes. At this rate, how many miles can he ride in 100 minutes?

Answer 1

30 miles

Explanation:

First you want to divide 100mins by 20mins which will equal 5

Then multiply 5 by 6 which will equal 30

Answer 2

30 miles

Explanation:

We can use a ratio to solve

6 miles x miles

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

20 minutes 100 minutes

Using cross products

6 * 100 = 20 x

Divide each side by 20

600/20 = 20x/20

30 =x