15 divided by what equals 30?


15 divided by what equals 30? In other words, you have 15 and you divide it by something and then you get 30. What is that something?

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

   
15
 
   
X
 
  = 30

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

   
15(X)
 
   
X
 
  = 30(X)

  15 = 30X

Then, divide both sides by 30 to get X by itself as follows:

   
15
 
   
30
 
  =
   
30X
 
   
30
 

  0.5 = X

Thus, the answer to "15 divided by what equals 30?" is 0.5.


Note that our answers are rounded to the nearest thousandth if necessary. You can divide 15 by 0.5 to check that we got the right answer.

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