What is 0.003 percent of 2.9 - 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 2.9 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 2.9 is 100%, so we can write it down as 2.9=100%.
4. We know, that x is 0.003% of the output value, so we can write it down as x=0.003%.
5. Now we have two simple equations:
1) 2.9=100%
2) x=0.003%
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:
2.9/x=100%/0.003%
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 0.003% of 2.9

2.9/x=100/0.003
(2.9/x)*x=(100/0.003)*x       - we multiply both sides of the equation by x
2.9=33333.333333333*x       - we divide both sides of the equation by (33333.333333333) to get x
2.9/33333.333333333=x
8.7E-5=x
x=8.7E-5

now we have:
0.003% of 2.9=8.7E-5