Question

Michael can mow 5 lawns in 36 minutes. At this rate, how long will it take him to mow 15 lawns?

Answer 1

It would take him 108 minutes to mow the lawn.

Explanation:

We can do proportion.

`(5 \: lawns)/(36 \: minutes) = \: (15 \: lawns)/(x)`

`36 * 15 = 540 \\ 5 * x = 5x`

`(540)/(5) = (5x)/(5)`

`108 = x`