Question

Question is attached

Answer 1

Option A. 63 minutes

Explanation:

30 ------- 27

100 ----- x

x = (100)(27)/30 = 2700/30 = 90

90 -27 =63

Hope this helps

Answer 2

Answer: A, 63 minutes

Explanation:

We can start by making this into two ratios. Isa finished 30% in 27 minutes, so 30/27 is our first ratio. We want to know how long it will take for the rest of the homework to be completed. 30% is finished already, which leaves 70% (100-30=70). The time left is x. Our second ratio is 70/x. Now, we can set the two ratios equal to each other to solve for x.

`(30)/(27) = (70)/(x)`

We can now cross multiply.

`30x= 27(70)`

Now, we simplify the right side.

`30x= 1890`

Divide both sides by 30 to isolate x.

`x= 63`

And there's your answer! Hope this helped!