8.64 is what percent of 10 - 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 10 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 10, so we can write it down as 100%=10.
4. We know, that x% equals 8.64 of the output value, so we can write it down as x%=8.64.
5. Now we have two simple equations:
1) 100%=10
2) x%=8.64
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%=10/8.64
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 8.64 is what percent of 10

100%/x%=10/8.64
(100/x)*x=(10/8.64)*x       - we multiply both sides of the equation by x
100=1.15740740741*x       - we divide both sides of the equation by (1.15740740741) to get x
100/1.15740740741=x
86.4=x
x=86.4

now we have:
8.64 is 86.4% of 10