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?(1 point)
Since Charla completes 2/3 of the area in 1/2 hour, we can assume that the remaining 1/3 of the area would also take 1/2 hour.
So, to complete the entire picture, it would take her 1/2 + 1/2 = <<1/2+1/2=1>>1 hour. Answer: \boxed{1}.
To find out how long it will take Charla to complete the entire picture, we can use proportions.
Let's say completing 2/3 of the area takes 1/2 hour.
So, 2/3 of the area = 1/2 hour.
To find out how long it takes to complete the whole area, we can set up the proportion:
2/3 (area) / 1/2 (hour) = 1 (whole area) / x (hour)
Cross multiplying, we get:
(2/3) * (x) = (1/2) * 1
Multiplying both sides by 3/2, we get:
2x/3 = 1/2
Cross multiplying again, we have:
2x = 3/2
Dividing both sides by 2, we get:
x = 3/4
So, it will take Charla 3/4 of an hour to complete the entire picture or 45 minutes.
To determine how long it will take Charla to complete the entire picture, we can start by finding out how much time it takes her to complete 1/3 of the area.
Given that she completed 2/3 of the area in 1/2 hour, we can assume that she will take the same amount of time to complete the remaining 1/3 of the area.
So, the time it takes her to complete 1/3 of the area is also 1/2 hour.
Since she can complete 1/3 of the area in 1/2 hour, it will take her 1 hour to complete the entire picture.