The battery on McKenzie's old computer can last for 4 1/5 hours. She bought a new computer that has a battery that can last 40% 
longer. How long can the battery on McKenzie's new computer last?
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:

Step-by-step explanation:
we know that


Let
x ------> new battery life
The equation that represent this situation is

convert to mixed number

 
                                
             
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Answer:
Below.
Step-by-step explanation:
Perimeter = 2(2x + 7 + 3x + 8)
= 2(5x + 15)
= 10x + 30.
 
        
             
        
        
        
 
1. 15/3:3/3
2. 5:1
 
1. find the same denominator 
2. divide by denominator 
 
        
             
        
        
        
Answer:
42
Step-by-step explanation:
Shanice =88
If greg won x pieces of gum, and 88 was 4 more than twice as many as Greg
2x+4=88
2x=84
x=42
 
        
             
        
        
        
Yep he said it best good job
        
             
        
        
        
Answer:
is number 6
Step-by-step explanation:
the greatest common factor is the largest common factor of those.