80 is what percent of 286 - 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 286 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 286, so we can write it down as 100%=286.
4. We know, that x% equals 80 of the output value, so we can write it down as x%=80.
5. Now we have two simple equations:
1) 100%=286
2) x%=80
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%=286/80
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 80 is what percent of 286

100%/x%=286/80
(100/x)*x=(286/80)*x       - we multiply both sides of the equation by x
100=3.575*x       - we divide both sides of the equation by (3.575) to get x
100/3.575=x
27.972027972028=x
x=27.972027972028

now we have:
80 is 27.972027972028% of 286