Question

45% of 40 is 18% of what number?

Answer 1

Answer:

45% of 40 is 18% of 100

Step-by-step explanation:

45% of 40 is 18% of what number

First we find out what is 45% of number 40

45% times 40

$\frac{45}{100} * 40= 18$

Now we find

18 = 18% of what number

Let the unknown number be x

18 = 18% * x

$18= \frac{18}{100} * x$

18 = 0.18 * x

Divide by 0.18 on both sides

100= x

So 45% of 40 is 18% of 100

Answer 2

So 45% OF 40 is 
45% * 40 
0.45 * 40
that is 18

18 is 18% of what number?
18 = 18% * x
18 = 0.18 * x
divide both sides by 0.18
100 = x
45 % of 40, which is 18, and is 18% of 100.

Hope this helps