Y = -3x - 1......so we sub in -3x - 1 in for y in the other equation
2x + 5y = 12
2x + 5(-3x - 1) = 12....now distribute the 5 through the parenthesis
2x - 15x - 5 = 12...add 5 to both sides
2x - 15x = 12 + 5..combine like terms
-13x = 17...divide both sides by -13
x = -17/13
now sub in -17/13 for x in the other equation
y = -3x - 1
y = -3(-17/13) - 1
y = 51/13 - 1
y = 51/13 - 13/13
y = 38/13
so the solution is (-17/13, 38/13)
        
             
        
        
        
Answer:
 

Step-by-step explanation:
 
A=


So you add :

To get 

Then you do :

To get : 

Answer is : 

 
        
             
        
        
        
Its 40 you basically add it kus if it gets colder than the temperature must of been higher so you add
        
             
        
        
        
2 because the equation can be reduced to: 8.0 x 10^4.
        
                    
             
        
        
        
Answer:
The investment decreased by 16.5771% per share.
Step-by-step explanation: