Answer:
- 16
Step-by-step explanation:
Average is calculated as
average = 
Thus for the given 10 numbers we have
 = - 5 ( multiply both sides by 10 )
 = - 5 ( multiply both sides by 10 )
total = - 50
let the number added be x, then
 = - 6 ( multiply both sides by 11 )
 = - 6 ( multiply both sides by 11 )
total + x = - 66, that is
- 50 + x = - 66 ( add 50 to both sides )
x = - 16
The new number is - 16
 
        
             
        
        
        
Answer:
Good morning.
Step-by-step explanation:
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Mallory purchased 8 oranges. 
6*0,75+n*1,25=14,50
        
                    
             
        
        
        
Answer:
3 inches to the right
Step-by-step explanation:
The first birdhouse is 27.7 inches to the right 
The second birdhouse is 24.9 inches to the left  or -24.9  ( left is negative)
The distance between is  found by adding the distances
27.7 - (24.9)
27.7-24.9 =2.8
2.8
Rounding to the nearest integer
3 inches apart
Using integers
28 - (25)
3 inches