Question

13 percentage of 130​

Answer 1

1. We assume, that the number 130 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 130, so we can write it down as 100%=130.

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%=130

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%=130/13

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 130

100%/x%=130/13

(100/x)*x=(130/13)*x       - we multiply both sides of the equation by x

100=10*x       - we divide both sides of the equation by (10) to get x

100/10=x

10=x

x=10