Question

It takes a total of 3 hours to wash every window on a building. There are 30 windows. How many minutes does it take to wash just one window? (4 points)

O 6 minutes
O 60 minutes
180 minutes
O 5,400 minutes

Answer 1

A. 6 minutes

Explanation:

6 minutes is 1/10 of an hour.

60 minutes is 1 hour.

5,400 minutes is 90 hours.

3 hours is 180 minutes. You can solve this as a proportion:

`(180)/(30) =(x)/(1)`

Cross multiply to get 30x = 180. x = 6.

Hope it helps!

Answer 2

6 minutes per window. Multiply 3(60) and then divide by the number of windows (30)