setup a simple algebraic equation and solve.
5x = 7x-28
-5x   -5x
0=2x-28
+28  +28
28=2x
Now divide both sides by 2 and you get that she is 14
 
        
                    
             
        
        
        
Answer: X=-7
Step-by-step explanation:
Using PEMDAS;
Step 1: Distribute the "3" in the part of the equation "3(x-2)"
3x - 6
Step 2: Consider the equation as a whole with the newly part of the equation from step 1, as it is a part of the equation
Therefore, re-written as,
3x - 6 + 48 = -3x
Step 3: Evaluate the re-written equation
Using basic mathematics skills, we can evaluate the following,
3x - 6 + 48 = -3x ➡ -6 + 48 = -6x ➡ 42 = -6x ➡ -7 = x
As shown, the answer is x=-7.
 
        
             
        
        
        
Step-by-step explanation:
25m + 10b = 400
not enough info to solve for m or b. but that's the equation you would use.
 
        
             
        
        
        
You could cross cancel the a and your final answer would be 5/11
        
                    
             
        
        
        
Answer:
(24, 224 ) i.e. 24 basketball and 224 footballs
Step-by-step explanation:
<em>Basketball :</em> 
uses 4 ounces of foam 
20 minutes of labor 
profit = $2.50
<em>Football :</em>
uses 3 ounces of foam
30 minutes of labor
profit = $2
Manufacturer has :
768 ounces of foam , 120 labor hours per week, 
<u>using the simplex method to determine the optimal production schedule so as to maximize profits </u>
lets assume 
x = number of basketball
y = number of footballs
maximize = 2.5 x + 2y  from a linear programming problem
attached below is the detailed solution