Answer:
n = (123 - 3a) / 0.1
Step-by-step explanation:
Given:
3a + 0.1n = 123
Solve for n
3a + 0.1n = 123
Subtract 3a from both sides
3a + 0.1n - 3a = 123 - 3a
0.1n = 123 - 3a
Divide both sides by 0.1
n = (123 - 3a) / 0.1
The resulting equation if 3a + 0.1n = 123 is solved for n is n = (123 - 3a) / 0.1
 
        
             
        
        
        
Formula: V = PI x r^2 x H
Volume = 3.14 x 4^2 x 10
Volume = 3.14 x 16 x 10
Volume = 3.14 x 160
Volume = 160π or 502.4 units^3
 
        
                    
             
        
        
        
Answer:
b.
( -3, -5)
Step-by-step explanation:
6x + 13 = 2x + 1
6x -2x = 1-13
4x = -12
x = -12/4 = -3
y = 6x + 13 
y = 6(-3) +13 = -18+13 = -5
(x, y) = (-3,-5) 
 
        
                    
             
        
        
        
80 is a good one to start with.
After that, you can move on to  83,  481,  1687, and  102,974,589 .  
        
                    
             
        
        
        
Answer:
The awnser is 2 and 3!!!!!!