Question

What percent of 90 is 18?

Answer 1

\[\frac{is}{of}=\frac{\%}{100}\]

Answer 2

\[\frac{18}{90}=\frac{\%}{100}\]

Answer 3

Percent is unknown, so replace percent with x:

\[\frac{18}{90}=\frac{x}{100}\]

Cross multiply, solve for x

Answer 4

90 x = 1800

x = 1800/90
x = 20

Therefore 20%

Answer 5

ok thx so much it really helped :)

Answer 6

You can also re-write the beginning of the problem and separate components like so:

what always gets replaced with x:


x percent of 90 is 18

Answer 7

and then

x% of 90 is 18

Answer 8

15% of what number is 24?

Answer 9

But always remember this formula:

\[\frac{is}{of}=\frac{\%}{100}\]

Answer 10

For this one:


15% of x is 24


so:


\[\frac{24}{x}=\frac{15}{100}\]

Answer 11

Do you get it?

Answer 12

not really wat goes in the x spot ?

Answer 13

x is what you have to find

Answer 14

oh ok let me work it out and see

Answer 15

x is an unknown variable.

Answer 16

the "of what number" is the part of the question that is unknown

Answer 17

is it 36 ?