I need more information to answer this
        
             
        
        
        
Ella has to add 32.833 lbs of water to get 33.333 lbs of syrup.
<u>Solution:</u>
Ella has 0.5 lbs of sugar. Let x lbs be the amount of water Ella should add to get the 1.5% of syrup,


On writing the proportion,

To get 1.5% syrup Ella should add 32.833 lbs of water. The total weight of syrup is 33.333 lbs.
 
        
             
        
        
        
Because we know the midpoint is in the middle, we know that both sides are equal. 
So set both = to each other
 4x - 1 = 3x + 3
add 1 to both sides
4x=3x+4
then subtract 3x from both sides and because there is always a 1 in front of x the answer would be
x=4
        
                    
             
        
        
        
The circumference would be 6 inches because you do 3 times 2