The straight line joining the points A(3,-5) and B(6,k) has a gradient of 4.
Gradient is the slope 
So the slope of the line joining the points A(3,-5) and B(6,k) is 4
Slope of line joining two points = 
A(3,-5) and B(6,k) are (x1,y1)  and (x2,y2)
slope = 
slope = 
We know slope =4
  
Cross multiply  and solve for k
k + 5 = 12
k = 7
The value of k = 7
 
        
             
        
        
        
Answer:
quick question that 1 4 supposed to be a fraction? as in 1/4?
 
        
             
        
        
        
Answer:
hehehe
Step-by-step explanation:
 
        
             
        
        
        
3-83= 80 
80 divided by 2 is 40 
the answer is 40
        
                    
             
        
        
        
Let's bear in mind that 5 gallons with a solution of 6% bleach, contains some water plus some bleach, how much bleach?  well, is just 6% of 5 gallons or namely (6/100) * 5 gallons, or 0.30 gallons.
if we use "x" gallons of water, well pure water has no bleach, so is 0% bleach, and it has a (0/100) * x or 0x gallons of bleach.
the mixture will be say "y" gallons, and is 4% bleach, so (4/100) * y is 0.04y gallons in the mixture of bleach.
