# What is 99 percent of 40 - step by step solution

## Simple and best practice solution for 99% of 40. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

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To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 40 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 40 is 100%, so we can write it down as 40=100%.
4. We know, that x is 99% of the output value, so we can write it down as x=99%.
5. Now we have two simple equations:
1) 40=100%
2) x=99%
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:
40/x=100%/99%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 99% of 40

40/x=100/99
(40/x)*x=(100/99)*x - we multiply both sides of the equation by x
40=1.0101010101*x - we divide both sides of the equation by (1.0101010101) to get x
40/1.0101010101=x
39.6=x
x=39.6

now we have:
99% of 40=39.6

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