7 is what percent of 1239 - 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 1239 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 1239, so we can write it down as 100%=1239.
4. We know, that x% equals 7 of the output value, so we can write it down as x%=7.
5. Now we have two simple equations:
1) 100%=1239
2) x%=7
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%=1239/7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 7 is what percent of 1239

100%/x%=1239/7
(100/x)*x=(1239/7)*x       - we multiply both sides of the equation by x
100=177*x       - we divide both sides of the equation by (177) to get x
100/177=x
0.56497175141243=x
x=0.56497175141243

now we have:
7 is 0.56497175141243% of 1239