Answer:
y = -3x - 5
Step-by-step explanation:
3x - y = 5
+3x      +3x
-1y = 3x + 5
----  -----   -----
-1       -1     -1
y = -3x - 5
 
        
             
        
        
        
11 minutes has passed just subtract
        
                    
             
        
        
        
Answer:
A=950
B=540
Step-by-step explanation:

 
        
                    
             
        
        
        
A. the first one will give you a perpendicular line to BA
        
             
        
        
        
To solve this problem, let us first assign variables. Let
us say that:
A = runner
B = cyclist
d = distance
v = velocity 
time = t 
 
The time in which the cyclist overtakes the runner is the
time wherein the distance of the two is the same, that is:
dA = dB
 
We know that the formula for calculating distance is:
d = v t
therefore,
vA tA = vB tB
 
Further, we know that tA = tB + 2, therefore:
vA (tB + 2) = vB tB
4 (tB + 2) = 14 tB
4 tB + 8 = 14 tB
10 tB = 8
tB = 0.8 hours = 48 min
 
Therefore the cyclist overtakes the runner after 0.8
hours or 48 minutes.