A recipe calls for 2 cups of flour to make 24 cookies. How many cups of flour would it take to make 39 cookies?

39 or 36 cookies?

39 NOT 36!!!

To solve this problem, we can set up a proportion using the ratio of cups of flour to the number of cookies.

Let's call the unknown amount of flour needed "x".

We know that 2 cups of flour make 24 cookies, so we can set up the following proportion:

2 cups / 24 cookies = x cups / 39 cookies

To solve for x, we can cross-multiply and then divide:

(2 cups) * (39 cookies) = (24 cookies) * (x cups)

78 cups = 24x

Now, divide both sides of the equation by 24:

78 cups / 24 = x

x ≈ 3.25 cups

Therefore, it would take approximately 3.25 cups of flour to make 39 cookies.