Question

15% of 80 is what?

Answer 1

`12` is `15%` of `80`. See Explanation.

Explanation:

1. See what is asked
   So we are asked what `15%` of `80` is.
2. Figure out "plan of attack"
   So the best way that there seems to be to solve this problem is making a proportion.

3. Solve
   `x` is to `80` as
   `15` is to `100`

   (We are using `100` because `15 %` is out of `100 %`)

4. Cross multiply
   `x` `*` `100 = 15` `xx` `80`

5. Carry out what multiplication that can be done
   `100x` `=` `1,200`

6. Divide both sides by `100`
   `x` `=` `12`
   And there is your answer, `12`.
   `12` is `15%` of `80`

You can double check your answer by plugging these numbers, including `12`, back into the proportion.

`12` is to `80` as
`15` is to `100`
`12 xx 100` `=` `80 xx 15`
✅`1,200 = 1,200`✅

Hope this helps!