Answer:
4.6
Step-by-step explanation:
1. We assume, that the number 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 4 is 100%, so we can write it down as 4=100%.
4. We know, that x is 115% of the output value, so we can write it down as x=115%.
5. Now we have two simple equations:
1) 4=100%
2) x=115%
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:
4/x=100%/115%
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 115% of 4
4/x=100/115
(4/x)*x=(100/115)*x - we multiply both sides of the equation by x
4=0.8695652173913*x - we divide both sides of the equation by (0.8695652173913) to get x
4/0.8695652173913=x
4.6=x
x=4.6
now we have:
115% of 4=4.6
