520 is 13 percent of what number? (13% of what number is 520?)

520 is 13 percent of what number?

"520 is 13 percent of what number?" is a word problem where the answer is a number. Specifically, if you calculate 13 percent of number (x), you will get 520. Thus, you can illustrate the problem "520 is 13 percent of what number (x)" like this:

13% of x = 520

To calculate 13 percent of a number, we multiply the number by 13 and then divide by 100. Therefore, we can make the following function:

		13 ∗ x
		100

= 520

To solve for x, we first multiply both sides by 100 and then divide both sides by 13 to get the x = 4000. Therefore, the answer to 520 is 13 percent of what number? is:

4000

If we substitue "what number" in the question "520 is 13 percent of what number?" with 4000, we get this sentence: 520 is 13 percent of 4000. Since this statement is true, we know that our answer is correct.

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