Question #f5f91

1 Answer
Dec 1, 2017

30

Explanation:

If you mean "12 is 40%of what?" Then, we can look at 40% as a decimal, which would be 0.4.

The number we are looking for can be written as x so 0.4 of x should be 12.

Writing this as an equation we see 0.4x=12. Rearranging this equation by dividing everything by 0.4 would give us x=120.4

120.4 is 30 because 12÷410 is the same as 12×104 which gives:

120430

Hope this helps!