13 is what percent of 13140 - 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 13140 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 13140, so we can write it down as 100%=13140.
4. We know, that x% equals 13 of the output value, so we can write it down as x%=13.
5. Now we have two simple equations:
1) 100%=13140
2) x%=13
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%=13140/13
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 13 is what percent of 13140

100%/x%=13140/13
(100/x)*x=(13140/13)*x       - we multiply both sides of the equation by x
100=1010.7692307692*x       - we divide both sides of the equation by (1010.7692307692) to get x
100/1010.7692307692=x
0.098934550989346=x
x=0.098934550989346

now we have:
13 is 0.098934550989346% of 13140