What is 3.5 percent of 2130 - 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 2130 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 2130 is 100%, so we can write it down as 2130=100%.
4. We know, that x is 3.5% of the output value, so we can write it down as x=3.5%.
5. Now we have two simple equations:
1) 2130=100%
2) x=3.5%
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:
2130/x=100%/3.5%
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 3.5% of 2130

2130/x=100/3.5
(2130/x)*x=(100/3.5)*x       - we multiply both sides of the equation by x
2130=28.571428571429*x       - we divide both sides of the equation by (28.571428571429) to get x
2130/28.571428571429=x
74.55=x
x=74.55

now we have:
3.5% of 2130=74.55