No parts are manufactures is when x=0 because it is run 0 hours
y=amount of elctricity needed
y=12(0)+24
y=0+24
y=24
24 watts are used on a day when no parts are manufactured
        
             
        
        
        
Answer:
No solutions
Step-by-step explanation:
3x+4y=-4
15x+20y=-22
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-5(3x+4y)=-5(-4) multiply 1st equation by -5 so you can eliminate the variables
-15x-20y=20. Modified 1st equation
15x+20y=-22.  2nd equation
0+0=-2. Added two equations together
since 0 does not equal -2, there is no solution.
 
        
             
        
        
        
950 g * 1 cm^3/10.5g =  950/10.5 cm^3 = 90.476 cm^3
 
        
                    
             
        
        
        
Why do I need to add 20 characters?
 
        
        
        
Then you are able to substitute in X and it can have a infinite number of values catered to the question.