390 is 5 percent of what number? (5% of what number is 390?)

390 is 5 percent of what number?

"390 is 5 percent of what number?" is a word problem where the answer is a number. Specifically, if you calculate 5 percent of number (x), you will get 390. Thus, you can illustrate the problem "390 is 5 percent of what number (x)" like this:

5% of x = 390

To calculate 5 percent of a number, we multiply the number by 5 and then divide by 100. Therefore, we can make the following function:

		5 ∗ x
		100

= 390

To solve for x, we first multiply both sides by 100 and then divide both sides by 5 to get the x = 7800. Therefore, the answer to 390 is 5 percent of what number? is:

7800

If we substitue "what number" in the question "390 is 5 percent of what number?" with 7800, we get this sentence: 390 is 5 percent of 7800. Since this statement is true, we know that our answer is correct.

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