What is 2.5 percent of 1978.4 - step by step solution

Simple and best practice solution for 2.5% of 1978.4. 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 1978.4 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 1978.4 is 100%, so we can write it down as 1978.4=100%.
4. We know, that x is 2.5% of the output value, so we can write it down as x=2.5%.
5. Now we have two simple equations:
1) 1978.4=100%
2) x=2.5%
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:
1978.4/x=100%/2.5%
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 2.5% of 1978.4

1978.4/x=100/2.5
(1978.4/x)*x=(100/2.5)*x       - we multiply both sides of the equation by x
1978.4=40*x       - we divide both sides of the equation by (40) to get x
1978.4/40=x
49.46=x
x=49.46

now we have:
2.5% of 1978.4=49.46

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