309 is 30 percent of what number? (30% of what number is 309?)

309 is 30 percent of what number?

"309 is 30 percent of what number?" is a word problem where the answer is a number. Specifically, if you calculate 30 percent of number (x), you will get 309. Thus, you can illustrate the problem "309 is 30 percent of what number (x)" like this:

30% of x = 309

To calculate 30 percent of a number, we multiply the number by 30 and then divide by 100. Therefore, we can make the following function:

		30 ∗ x
		100

= 309

To solve for x, we first multiply both sides by 100 and then divide both sides by 30 to get the x = 1030. Therefore, the answer to 309 is 30 percent of what number? is:

1030

If we substitue "what number" in the question "309 is 30 percent of what number?" with 1030, we get this sentence: 309 is 30 percent of 1030. Since this statement is true, we know that our answer is correct.

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