They live 9 3/4 blocks away from eachother
        
                    
             
        
        
        
Slope of  2y = x + 5:-
This is y = 0.5 x + 2.5  in slope intercept form so its slope = 0.5
Slope of the line perpendicular to it = -1 / 0.5 = -2
it passes through (2 , 1) so we have
y- 1 = -2(x - 2)
y = -2x + 4 + 1
The answer is y = -2x + 5
        
             
        
        
        
Answer:
The answer
Step-by-step explanation:
The expected value equation could only be
2x = 3y
 
        
             
        
        
        
Answer:
15/13
Step-by-step explanation:
 
        
                    
             
        
        
        
Let e=erasers and p=pencils. So we know the total amount of erasers plus pencils sold is equal to 220. Therefore, 

We also know the cost of erasers and pencils totaled to $695 in earnings and so:

and so those are your two equations.