Answer:
d
Step-by-step explanation:
i did th etst hope it helps
 
        
             
        
        
        
Answer:
x=2.75
Step-by-step explanation:
The answer will be correct.
 
        
             
        
        
        
Answer:
12
Step-by-step explanation:
4x + 5y = 3 ................ (i)
kx + 15y = 9................(ii)
Dividing eqn (ii) by 3, we get,
k/3 x + 5y = 3.............(iii)
Subtracting eqn (iii) by eqn (i), we get,
-4x - k/3 x = 0
or, -(4 - k/3 )x = 0
or, 4 - k/3 = 0/x
or, 4 - k/3 = 0
or, 4 = k/3
or, k = 4*3
:. k = 12 (Ans)
 
        
             
        
        
        
Answer:
It is 1  4/7
Step-by-step explanation: