Answer:
2/3n + 20
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Shirts = $7
Shorts $17
Step-by-step explanation:
Let:
T - shirts
S - shorts
We can make two equations out of this problem:
4T + 3S = $79
7T + 8S = $185
Through substitution we can solve for one of the unknowns. We make one equation to solve for an unknown

We use the formula of S and insert it into the other equation:

Thus T-shirts are $7 each.
Now that we know T, we can use it to solve for the other unknown. You can use it on any of the formulas.

We know then that Shorts are $17 each. 
 
        
             
        
        
        
Answer:
(4.2 X 10,000) X (2 X 1,000)
42,000 X 2,000= 84,000,000
Step-by-step explanation:
Hope this helps
 
        
                    
             
        
        
        
Answer:
27.33333... mph
Step-by-step explanation:
Find 1/3 of 20 1/2: 1/3*41/2=41/6
That equals 6.83333...
Now add 20 1/2 and 6.83333 = 27.3333...
Therefore, 27.33333... mph
 
        
             
        
        
        
For this case we have the following system of equations:
 
 Equating the values of y we have: 

 From here, we can clear the value of x.
 We have then: 

 Then, we look for the value of y.
 For this, we substitute x in any of the equations: 
 Answer:
 Answer:
 The ordered pair solution of the system of equations, is given by:
 