Composite numbers are numbers that are not prime.
        
                    
             
        
        
        
Answer:
The answer is d = C/pi.
Step-by-step explanation:
To solve this equation for the variable d, we must isolate it on the right side of the equation.  It is currently being multiplied by pi, so to reverse this action, we should divide both sides of the equation by pi.
c = (pi) * d
c/pi = pi/pi * d
c/pi = d 
d = c/pi
Therefore, the answer is d = C/pi.
Hope this helps!
 
        
             
        
        
        
Answer:
the number of single room is 27 and the number of double room  is 53 
Step-by-step explanation:
Let x is the number of single room
Let y is the number of double room 
We know that: 
x + y = 80 <=> x = 80 -y (1) 
80x +90y= 6930 (2) 
Substitute (1) in (2) we have: 
80 (80 - y) + 90y = 6930 
<=> 6400 - 80y +90y = 6930 
<=> y = 53 
> x = 80 - 53 = 27 
the number of single room is 27 and the number of double room  is 53 
 
        
             
        
        
        
The general line through (a,b) and (c,d) is
(c-a)(y-b)=(d-b)(x-a)
Here that's
(1 - - 5)(y - - 5) = (4 - -5)(x - - 5)
6(y+5)=9(x+5)
6y + 30 = 9x + 45
-15 = 9x - 6y
3x - 2y = -5
Answer: 3x - 2y = -5
We could put that in slope intercept form,
2y = 3x + 5
y = (3/2) x + 5/2
Answer: y = (3/2) x + 5/2
 
        
             
        
        
        
Answer:
82, 84
Step-by-step explanation: