Answer:
20-8 = 12 , he waste $12 if he got 4 cans 12 divide by 4 equal 3 so the one can cost $3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
We just add numerators and rewrite denominator.
Adding unlike dominators: 
We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.
Step-by-step explanation:
You mean unlike denominators and like denominators.
Adding like dominators: We just add numerators and rewrite denominator : 
Example : 
Adding unlike dominators: 
We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.
For example : 

LCM for 5 and 4 is 20 : Now, divide by 5 and multiply by 1 for first fraction. 20 divide by 4 and multiply by 3 : 

 
        
                    
             
        
        
        
Answer:
x + y ≤ 
3x + 5y ≥ 1100
Step-by-step explanation:
Given:
Seating capacity of theater = 250
Cost of each child ticket = $3
Cost of each adult ticket = $5
Cost per performance = $1100 at least
Find:
System of inequalities
Computation:
Let;
x = Number of children's tickets 
y = Number of adult tickets
So
x + y ≤ 
3x + 5y ≥ 1100
 
        
             
        
        
        
The answer to this question using the quadratic formula is x= -1+3√5/2 and x=-1-3<span>√5/2
</span>that is a square root, or, 3 times the square root of 5 ALL over 2, except for the 1. Same with the other one.