Question

Question #f5f91

Answer 1

`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 = 12/0.4`

`12/0.4` is `30` because `12 -: 4/10` is the same as `12 xx 10/4` which gives:

`120/4 --> 30`

Hope this helps!