15 is what percent of 9? (What percent of 9 is 15?)

15 is what percent of 9?

The question here is "15 is what percent of 9?" which is the same as "What percent of 9 is 15?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 9 equals 15.

The problem is therefore x% of 9 = 15 which can be written as a function:

		x ∗ 9
		100

= 15

And when we solve the function above for x, we get 166.667. The answer to "15 is what percent of 9?" is therefore:

166.667%

How can we know the answer is correct? We know the answer is correct because 166.667 percent of 9 is 15.

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