So, if you're trying to ask what 12 divided by 3 is, then the answer is four. (Using inverse operation), because 4x3=12. But, make sure you put the label! The answer is $4.
        
             
        
        
        
Answer:
18 minutes
Step-by-step explanation:
Given that:
The arrival time = 3 customers / hour
The avg. service rate (s) = 12 minutes per customer
To hour, we have:
 
s = 5 customers/ hour
Thus, the required average time for a customer needs to wait in line is:

To minutes;

= 18 minutes
 
        
             
        
        
        
959.4/6=159.9
eeeeeeeeeeeeeeeeeeeeeeeee
 
        
             
        
        
        
Answer:
 2x - 13
Step-by-step explanation:
Step  1  :
            1
 Simplify   —
            2
Equation at the end of step  1  :
                1
  (-4x - 2) +  (— • (12x - 22))
                2
Step  2  :
Pulling out like terms :
 3.1     Pull out like factors :
   12x - 22  =   2 • (6x - 11)  
Step  3  :
Pulling out like terms :
 3.1     Pull out like factors :
   12x - 22  =   2 • (6x - 11)  
Equation at the end of step  3  :
  (-4x - 2) +  (6x - 11)