Answer:
16
Step-by-step explanation:
The mean of a group of values is calculated as
mean = 
Given 5 numbers with a mean of 12, then
 = 12 ( multiply both sides by 5 )
 = 12 ( multiply both sides by 5 )
sum = 60
let the number removed be x , then
 = 11 ( multiply both sides by 4 )
 = 11 ( multiply both sides by 4 )
60 - x = 44 ( subtract 60 from both sides )
- x = - 16 ( multiply both sides by - 1 )
x = 16
The number removed was 16
 
        
             
        
        
        
Answer:
-2x-14
Step-by-step explanation:
 
        
                    
             
        
        
        
The value of p = 11
y = 5x + p
1 = 5(-2) + p
1 = -10 + p
11 = p
        
             
        
        
        
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