Steps to solve:
k + 10 = 27
~Subtract 10 to both sides
k = 17
Best of Luck!
 
        
             
        
        
        
Laura paddles in her canoe at a speed of 5 mph for 5 miles. 
As we know that 

Substitute the values we get

Laura hops on her windsurfer and sails for 12 miles at a speed of 6 mph.
Again using the above formula we can write 

Hence from equation (i) and (ii), we can say total time of travel
 
        
                    
             
        
        
        
Answer:
174
Step-by-step explanation:
You should look at the mean and do this:
5*28 so now you know all the ages which is 140 now you do 140/29 and you get 4.8....... so you  can see that the answer is 174
 
        
             
        
        
        
If you need an equation it is -3.4x=21.5
You simply divide both sides by -3.4 to get x=-6.32
if that's not right then just get on a calculator and calculate by doing what I said to divide
        
             
        
        
        
Answer:
f(-2) = -1
Step-by-step explanation:
f(x) = -x^2 + 3
f(-2) means when x is -2
Shown in the graph below, the point of solution is: (-2,-1), so when x is -2 y is -1