..Given:

To Determine: The number of bacteria after 20 hours
Using the future value formula for growth rate

Therefore

Hence, population of bacteria in 20 hours is 108,886
 
        
             
        
        
        
So we want to know what x times 2 is. So think about this: multiply x with 2. We can find out what works and what doesn’t. So remind yourself that if you are multiplying a negative number, you get a negative. And when you minus a negative with a positive it’s the same as a negative + a negative. So it can’t be a negative as the answer is 0. Try each positive and you will find the answer to be
X=8
        
                    
             
        
        
        
Answer:
i think the answer is <u><em>115</em></u>
i am not sure tho..
its not 115
 
        
                    
             
        
        
        
 your answer would be 
2/5, 3/7, 3/5, 1/2