Three consecutive even numbers have a sum between 84 and 96.
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
a. 84 < n + (n + 2) + (n + 4) < 96
b. 26 < n < 30
Step-by-step explanation:
Let n = 1st number
n+2   2nd  even number
n+4 = 3rd even number
The sum of these 3 numbers is
n+n+2+n+4
It must be between 84 and 96  (it does not include this 84 and 96)
84< n+n+2+n+4 < 96
Now we need to solve this
Combine like terms
84 < 3n +6< 96
Subtract 6 from all sides
84 -6 < 3n+6-6 < 96 -6
78 < 3n < 90
Divide all sides by 3
78/3 < 3n/3 < 90/3
26 < n< 30
 
                                
             
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It's kind of like division and mutliplycation I guess
        
             
        
        
        
Add 8 to both sides
2x = 28
Divide 2 to both sides
Solution: x = 14
        
                    
             
        
        
        
are your O's different sizes? or is it just my eyes?