42 is what percent of 79.5 - 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 79.5 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 79.5, so we can write it down as 100%=79.5.
4. We know, that x% equals 42 of the output value, so we can write it down as x%=42.
5. Now we have two simple equations:
1) 100%=79.5
2) x%=42
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%=79.5/42
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 42 is what percent of 79.5

100%/x%=79.5/42
(100/x)*x=(79.5/42)*x       - we multiply both sides of the equation by x
100=1.8928571428571*x       - we divide both sides of the equation by (1.8928571428571) to get x
100/1.8928571428571=x
52.830188679245=x
x=52.830188679245

now we have:
42 is 52.830188679245% of 79.5