What is 250 percent of 20.9 - step by step solution

Simple and best practice solution for 250% of 20.9. 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 20.9 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 20.9 is 100%, so we can write it down as 20.9=100%.
4. We know, that x is 250% of the output value, so we can write it down as x=250%.
5. Now we have two simple equations:
1) 20.9=100%
2) x=250%
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:
20.9/x=100%/250%
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 250% of 20.9

20.9/x=100/250
(20.9/x)*x=(100/250)*x       - we multiply both sides of the equation by x
20.9=0.4*x       - we divide both sides of the equation by (0.4) to get x
20.9/0.4=x
52.25=x
x=52.25

now we have:
250% of 20.9=52.25

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