40 is what percent of 682.5 - 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 682.5 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 682.5, so we can write it down as 100%=682.5.
4. We know, that x% equals 40 of the output value, so we can write it down as x%=40.
5. Now we have two simple equations:
1) 100%=682.5
2) x%=40
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%=682.5/40
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 40 is what percent of 682.5

100%/x%=682.5/40
(100/x)*x=(682.5/40)*x       - we multiply both sides of the equation by x
100=17.0625*x       - we divide both sides of the equation by (17.0625) to get x
100/17.0625=x
5.8608058608059=x
x=5.8608058608059

now we have:
40 is 5.8608058608059% of 682.5