Question

After taking 15 cups of flour out of a bag, 3 cups of flour remained. How many cups of flour were in the bag to start?
A. 3 - 15 = f
B. f 15 = 3
C. 15 + f = 3
D. 3 f = 15
E. 3 + f = 15
F. f - 15 = 3

Answer 1

The answer is F.
If we call the bag of flour f, the bag needs to remove 15 cups, which is f-15. Then only 3 cups remained. So, on the other side of the equals sign, we get a 3.

So the answer is f-15 = 3. 
Hope this helps!

Answer 2

Answer: f-15=3

Step-by-step explanation: just took the test on ap3x.