Answer:
2/10 on the first draw and 1/9 on the second draw
Step-by-step explanation:
In the first draw, 2 marbles are yellow out of 10, but on the second draw, you don't replace a yellow marble leaving 1 yellow marble out of 9 total marbles in the bag.
 
        
             
        
        
        
Answer:
80
Step-by-step explanation:
add
 
        
             
        
        
        
Answer:
The number of ways is  
Step-by-step explanation:
From the question we are told that
    The number of tickets are   
     The number of finalist are 
Generally the number of way by which this winners can be drawn and arrange in the order of    is mathematically represented as
    is mathematically represented as 
              
substituting values 
              
            
            
 
        
             
        
        
        
Answer:
x = 7
Step-by-step explanation:
4x+5x=63
Combine like terms
9x = 63
Divide by 9 
9x/9 =63/9
x = 7