Answer:
x = 4
31x + 6 = 130
12x + 2 = 50
Step-by-step explanation:
two angles side by side are equal to 180.
(31x + 6) + (12x + 2) = 180
43x + 8 = 180
43x = 172
x = 4
31x + 6 = 124 + 4 = 130
12x + 2 = 48 + 2 = 50
 
        
             
        
        
        
81 is the correct answer
hope it helps you have a good day
 
        
             
        
        
        
Answer:
I have the answer
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
To write this equation with h isolated, we cancel everything else on the right hand side of the equals sign.  This means we cancel π and r².
Since both of these are attached to h by multiplication, we divide by both to cancel.  We can divide by both at the same time:

 
        
                    
             
        
        
        
We know,
1 unit : 5 feet
so, 120 ft = (120 / 5) units
                = 24 units
  
        75 ft = (75 / 5) units
                = 15 units
∴ Dimensions of scale drawing is 24 units by 15 units.