To get the solution, we are looking for, we need to point out what we know.
1. We assume, that the number 45.5 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 45.5 is 100%, so we can write it down as 45.5=100%.
4. We know, that x is 6.81% of the output value, so we can write it down as x=6.81%.
5. Now we have two simple equations:
1) 45.5=100%
2) x=6.81%
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:
45.5/x=100%/6.81%
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 6.81% of 45.5
45.5/x=100/6.81
(45.5/x)*x=(100/6.81)*x       - we multiply both sides of the equation by x
45.5=14.684287812041*x       - we divide both sides of the equation by (14.684287812041) to get x
45.5/14.684287812041=x
3.09855=x
x=3.09855
now we have:
6.81% of 45.5=3.09855
Hope this helps!
 
        
                    
             
        
        
        
42 is 21% of 200. This is because 200*0.21 = 42.
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The result is given by means of some algebraic handling:

 - Multiplication of rationals.
 - Multiplication of rationals.
 - Dividing each term by 2.
 - Dividing each term by 2.
 - Dividing each term by 2.
 - Dividing each term by 2.
 - Dividing each term by 3.
 - Dividing each term by 3.
 
        
             
        
        
        
Answer:
52+46
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   x = 30
Step-by-step explanation:
a) The sum of the angles along the line is 180°. That means ...
    2x° +90° +x° = 180°
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b) Subtracting 90° and dividing by 3° gives ...
   3x° = 90°
   x = 30