Answer: 15%
Step-by-step explanation:
The Percentage decrease will be:
= Decrease in weight / Old weight × 100
= (200 - 170) / 200 × 100
= 30/200 × 100
= 15%
The Percentage decrease is 15%
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
i don’t have time now but i promise i’ll give it when i have time
 
        
                    
             
        
        
        
Answer:
x = 12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
X = 20
Step-by-step explanation:
Hope this helps! If you need the explanation, let me know. Pls give brainliest! 
 
        
                    
             
        
        
        
As pair means that 2 socks with the same color need to be drawn for it to be identified as a pair. 
However there is a probability that if u only pick 2 socks, then they could kid each have different COLORS.
By picking 3 socks (bearing in mind there are only 2 types of color) it’s guaranteed that two socks will have the same color.