8.89 is what percent of 39.9 - 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 39.9 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 39.9, so we can write it down as 100%=39.9.
4. We know, that x% equals 8.89 of the output value, so we can write it down as x%=8.89.
5. Now we have two simple equations:
1) 100%=39.9
2) x%=8.89
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%=39.9/8.89
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 8.89 is what percent of 39.9

100%/x%=39.9/8.89
(100/x)*x=(39.9/8.89)*x       - we multiply both sides of the equation by x
100=4.488188976378*x       - we divide both sides of the equation by (4.488188976378) to get x
100/4.488188976378=x
22.280701754386=x
x=22.280701754386

now we have:
8.89 is 22.280701754386% of 39.9