45% of 40 is 18% of what number?

100

0.45 * 40 = 18

0.18x = 18
x = 18 / 0.18
x = 100

Correct

0.45 * 40 = 18

0.18x = 18

x = ?

The answer is 100

The number is equal to 100
hope that helps

To find out what number 18% of a given number is, we need to set up a proportion.

Let's denote the unknown number as "x". The proportion can be set up as follows:

45% of 40 is equal to 18% of x.

Mathematically, this can be written as:

(45/100) * 40 = (18/100) * x

To solve for x, we can cross-multiply:

(45/100) * 40 = (18/100) * x

(45 * 40) / 100 = (18 * x) / 100

1800 / 100 = 18x / 100

Divide both sides by 18 to isolate x:

1800 / 18 = x

Simplifying further:

100 = x

So, 18% of 100 is 18.

Therefore, 45% of 40 is equal to 18% of 100.