9 is what percent of 28.99 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 28.99 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 28.99, so we can write it down as 100%=28.99.
4. We know, that x% equals 9 of the output value, so we can write it down as x%=9.
5. Now we have two simple equations:
1) 100%=28.99
2) x%=9
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=28.99/9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 9 is what percent of 28.99

100%/x%=28.99/9
(100/x)*x=(28.99/9)*x       - we multiply both sides of the equation by x
100=3.2211111111111*x       - we divide both sides of the equation by (3.2211111111111) to get x
100/3.2211111111111=x
31.045187995861=x
x=31.045187995861

now we have:
9 is 31.045187995861% of 28.99