Answer:
a) (11/7, 9/7)
b) There's no point of intersection
Step-by-step explanation:
a) x - 2y + 1 = 0
2x + 3y - 7 = 0
To find the point of intersection, we need to solve the system of equations  and the result will be the point of intersection (x,y)

Now we substitute x in the second equation: 

Now we substitute y in our first equation.
 .
.
The point of intersection is (11/7, 9/7)
b) x -2y +11 =0
-x + 2y - 13 =0
We are going to follow the same procedure:


Since this system of equations doesn't have a solution, the system has no point of intersection. 
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
this question is basically asking you to find the HCF of 30 and 36
step 1 : draw prime factor tree diagrams and write the numbers out as the product if their prime factors
step 2: multiply the prime factors they have in common
30 = 2 x 3 x 5
36 = 2 x 2 x 3 x 3
HCF = 2 x 3 = 6
 
        
                    
             
        
        
        
I think the answer is 9
It's a smaller version of the other figure. 
21/3=7
27/3=9
        
             
        
        
        
Answer:
mx is your slope and b is your y-intercept 
Step-by-step explanation:
 
        
             
        
        
        
Answer:4.375 miles left to go
Step-by-step explanation: