Answer:
7 the answer is 7
Step-by-step explanation:
1. We assume, that the number 20 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 is 100%, so we can write it down as 20=100%.
4. We know, that x is 35% of the output value, so we can write it down as x=35%.
5. Now we have two simple equations:
1) 20=100%
2) x=35%
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/x=100%/35%
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 35% of 20
20/x=100/35
(20/x)*x=(100/35)*x -
20=2.85714285714*x -
20/2.85714285714=x
7=x
x=7
now we have:
35% of 20=7
we multiply both sides by x
then we divide both sides by 2.85714285714 to get x
Divide to 2.2