Answer:
2kx+4y=20 ⇒ kx+2y=10
3x+6y=30 ⇒ x+2y= 10
k is the coefficient of x, so it is the slope of the line
- when k=1, both equations will be same, then there are many solutions
- when k=0 there is one solution
- when k is anything different, then the lines will be parallel, so no solutions
 
        
             
        
        
        
Answer:
x=3
Step-by-step explanation:
axis of symmetry always pass through X coordinate of vertex. 
here vertex is (h,k)= (3,5)
so x coordinate is 3.
so the equation of the axis of the symmetry is X=3
 
        
                    
             
        
        
        
Answer:
https://iepa.org.au/network-news/it
Step-by-step explanation:
that link is answer
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Since 40% of the crew are men, which means n. 40=8 n=8/. 40 n=20 total number of crew 20 - 8=12 are women
 
        
                    
             
        
        
        
The first one is ten times the second one.