Question

19 is 20% of what number?

Answer 1

95

Explanation:

This can be solved using the butterfly method.

First, since 19 is 20% of another number that means that
`(19)/(x)` =
`(20)/(100)`.

Then, cross multiplication is done by multiplying x by 20 and 19 by 100.

You then end up with the equation 1900=20x. Isolate the variable and divide both sides by 20. You end up with 95.

Bonus: check your answer by doing 19/95 to see if you get 0.2. Multiply 0.2 by 100 to get your percent.