The new mean is 66.09
<u>Explanation:</u>
Mean weight of 20 students = 65kg
One student with 88kg entered the room.
New mean = ?


The above equation can further be written as:

New mean = 
                  = 66.09
Therefore, the new mean is 66.09
 
        
             
        
        
        
Ooooppppppp— homie not gettin nun at home I see
        
             
        
        
        
20 is the answer 
I hope this help
        
             
        
        
        
For this, all you need to do is subtract 2m on both sides, and your answer will be: -1 = m