Answer:
5
Step-by-step explanation:
<u>(n-2)180 = 108</u>
           n 
Distribute 
180n-360=108n
-360=-72n
5=n
n=5
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given

Required
Find c
The question is incomplete. However, I'll assume the expression is a perfect square.
To find c, we make use of the following formula

Where

By comparison with 


So,  becomes
 becomes



<em>The value of c that makes the expression, </em> <em> a perfect square is 4 and the expression is: </em>
<em> a perfect square is 4 and the expression is: </em> <em></em>
<em></em>
 
        
             
        
        
        
Answer:
   60 chickens
Step-by-step explanation:
We assume the 140 refers to the number animals (heads, noses, bodies, whatever). If all of those were chickens, there would be 280 legs. There are 160 legs more than that.
Since each pig that replaces a chicken adds 2 legs, there must be 160/2 = 80 pigs. That leaves 140 -80 = 60 chickens.
 
        
             
        
        
        
Answer:
-3
Step-by-step explanation:
if x= -3 
the denominator becomes 0 and the fraction becomes undefined.