85 is what percent of 8.7 - 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 8.7 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 8.7, so we can write it down as 100%=8.7.
4. We know, that x% equals 85 of the output value, so we can write it down as x%=85.
5. Now we have two simple equations:
1) 100%=8.7
2) x%=85
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%=8.7/85
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 85 is what percent of 8.7

100%/x%=8.7/85
(100/x)*x=(8.7/85)*x       - we multiply both sides of the equation by x
100=0.10235294117647*x       - we divide both sides of the equation by (0.10235294117647) to get x
100/0.10235294117647=x
977.01149425287=x
x=977.01149425287

now we have:
85 is 977.01149425287% of 8.7