Charla wants to cover a certain rectangular area of her driveway with a picture using chalk. If she completes 2/3 of the area in 1/2 hour, how long will it take her to complete the entire picture?

__ of an hour

3 answers

Charla completed 2/3 of the area in 1/2 hour, so she has 1/3 of the area left to complete.

Since 2/3 of the area was completed in 1/2 hour, it will take 1/2 hour to complete 1/3 of the area.

Therefore, it will take Charla another 1/2 hour to complete the entire picture.

So, it will take Charla __ of an hour to complete the entire picture.
WHAT OF AN HOUR TO COMPLETE THE ENTIRE PICTURE
It will take Charla 1/2 hour to complete the entire picture.