Answer:
range is 9
Step-by-step explanation:
 
        
             
        
        
        
2x+4y=12
y=x-3
Since we know what y equals, we can plug this into the first equation:
2x+4(x-3)=12
We can then distribute:
2x+4x-12=12
And solve for x:
6x-12=12
6x=24
x=4
We can then plug x into the second equation and find y:
y=x-3
y=4-3
y=1
Therefore x=4 and y=1
        
             
        
        
        
Ratio 9:13:18......added = 40. This means that one person gets 9/40 of the total, one person gets 13/40 of the total and one person gets 18/40 of the total.
and if the total is 800...
9/40 * 800 = 7200/40 = 180 <==
13/40 * 800 = 10400/40 = 260 <==
18/40 * 800 = 14400/40 = 360 <==
        
             
        
        
        
The answer is 13/15.
2/5 = 12/30
2/3 = 20/30
12/30 + 20/30 - 6/30 = 32/30 - 6/30 = 26/30 = 13/15.
        
                    
             
        
        
        
Answer:
The answer is B
Step-by-step explanation:
because it snows 4 more time 
if 30mins is 7/8 then 3 
more of that is 4 times