What Divided by 9 Equals 91?
Methods
Setting up the problem:
In a problem like this, the “what” means that we’re working with a variable. The most common variable used in math is “x”. So, we could say what number, x, when divided by 9, equals 91?
Solving What Divided by 9 Equals 91
Here’s how you would set up this question as an equation:
x
9
=
91
\frac{x}{9} = 91
9 x = 91
The goal of the problem is to solve for x. To do this we need to change the equation so that x is alone on one side of the equation.In this case, we can do that by multiplying both sides of the equation by 9, resulting in this equation:
x
=
91
∗
9
x = 91*9
x = 91 ∗ 9
Then we simplify and find our answer:
x
=
819
x = 819
x = 819
So, the answer to the question “What divided by 9 equals 91?” is 819.To prove this, we can take the original problem:
x
9
=
91
\frac{x}{9} = 91
9 x = 91
And insert 819 in the place of x:
819
9
=
91
\frac{819}{9} = 91
9 819 = 91
Because this is true, the answer must be correct.
Practice Other Division Problems Like This One
If this problem was a little difficult or you want to practice your skills on another one, give it a go on any one of these too!
What divided by 50 equals 61?
31 divided by what equals 56?
What is 4/11 divided by 1?
What is 10/20 divided by 18/19?
What is 8 divided by 17/1?