4 divided by what equals 40?

4 divided by what equals 40? In other words, you have 4 and you divide it by something and then you get 40. What is that something?

We will call that something "X". Here is the equation to find the solution:

		4
		X

= 40

First, multiply both sides by X to get rid of the X as denominator.

		4(X)
		X

= 40(X)

4 = 40X

Then, divide both sides by 40 to get X by itself as follows:

		4
		40

		40X
		40

0.1 = X

Thus, the answer to "4 divided by what equals 40?" is 0.1.

Note that our answers are rounded to the nearest thousandth if necessary. You can divide 4 by 0.1 to check that we got the right answer.

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