Assume that the rule connecting height of the candle to time is a linear one.  If you do, then we have to find the equation of this line, and then use this equation to predict the height of the candle after 11 hours.
Two points on this line are (6,17.4) and (23, 7.2).  The slope is thus
         7.2-17.4           -6
m = ---------------  =  -----------  or   -3/5.
           23-6                 10
Find the equation of the line.  I'm going to use the slope-intercept formula:
y = mx + b  =>   7.2 = (-3/5)(23) + b.  Solving for b,   b = 21.
Now    we know that y = (-3/5)x + 21
Let x=11 to predict the height of the candle at that time.
y = (-3/5)(11) + 21 = 14.4 inches  (answer)
        
             
        
        
        
4.6/2= 2.3
0.84/2=0.42
0.93/3=0.31
46/2=23
84/2=42
93/3=31
        
                    
             
        
        
        
Answer:
33/100 =.33
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Hello, please consider the following.

So this is divisible by 3.
Now, to prove that this is divisible by 9 = 3*3 we need to prove that
 is divisible by 3. We will prove it by induction.
 is divisible by 3. We will prove it by induction.
Step 1 - for n = 1
4+17=21= 3*7 this is true
Step 2 - we assume this is true for k so  is divisible by 3
 is divisible by 3
and we check what happens for k+1

 is divisible by 3 and
 is divisible by 3 and
 is divisible by 3, by induction hypothesis
 is divisible by 3, by induction hypothesis
So, the sum is divisible by 3.
Step 3 - Conclusion
We just prove that  is divisible by 3 for all positive integers n.
 is divisible by 3 for all positive integers n.
Thanks
 
        
             
        
        
        
<span><span>4a+6b=10 
4a=10-6b 
a=(10-6b)/4 
a=(5-3b)/2 
</span>
<span>2a-4b=12 
2((5-3b)/2)-4b=12 
(5-3b)-4b=12 
5-7b=12 
-7b=7 
b=-1
</span>
<span>2a-4b=12 
2a-4(-1)=12 
2a+4=12 
2a=8 
a=4 
a=4, b=-1 </span>
12a=48</span>