Would it be B which is 51%
as you do 129 devided by 3.3 = 39.1
180-39.1= 141
141 is just over half
        
                    
             
        
        
        
Answer:
0.002  BTUs per cubic foot heat is produced per hour
Step-by-step explanation:
Given:
Number of person = 2
Amount of heat produced by one person = 2.400 BTU
Dimension of the room = 20 ft x 12 ft x 10 ft
To Find:
How many BTUs per cubic foot do they produce in 1 hour = ?
Solution:
E =
Substituting the values
E = 
E = 
E = 0.002  BTU per cubic feet
 
        
                    
             
        
        
        
The sum will be x+y because their ages are variables.
        
                    
             
        
        
        
Answer:
y = 9
Step-by-step explanation:
y-y1 = m(x-x1) 
m is the slope =y2-y1/x2-x1=9-9/-2-3=0
pick any number out of the given two for (x1, x2) 
y-9 = 0*(x-3) so 
y-9 = 0 add 9 to both sides
y = 9
 
        
             
        
        
        
Answer:
x = 6
Step-by-step explanation:
Given
3x + 30 + x = 10 + 2x + 5x + 2 , simplify both sides
4x + 30 = 7x + 12 ( subtract 7x from both sides )
- 3x + 30 = 12 ( subtract 30 from both sides )
- 3x = - 18 ( divide both sides by - 3 )
x = 6