Answer:
x =  12      ( two points shots )
y =  7       ( three points shots )
Step-by-step explanation:
Let´s call  "x" two points shots,  and  "y" three points shots, then
x  +  y  =  19
2*x  +  3*y  =  45
We have to solve a two-equation system for x and y
y =  19  - x
2*x  +  3 * ( 19 - x ) = 45
2*x  +  57  -  3*x   =  45
- x   =  45 - 57
-x   =  - 12
x  = 12
And     y  =  19  -  12
y  = 7
 
        
             
        
        
        
there is 1 number 3 on a 6 sided die
 so the probability or rolling a 3 is 1/6
 
        
             
        
        
        
Answer: -(22/4)
Step-by-step explanation:
 
        
             
        
        
        
24/6 is 4 which is also a whole number and an integer
        
             
        
        
        
Answer:
The value is 
Step-by-step explanation:
From question we are told that 
    The number of types of marbles present jar is n  =  3
Generally the probability of drawing a green marble is  
      
Generally the probability of drawing a marble that is not green is  
      
From the question we are told that there will be continuous drawing of marbles from the jar (in such a way that after each marble is drawn it is being replaced) until a green marble drawn 
   Let m be the number of times marbles has been drawn when a green marble was gotten 
it then means that for m - 1 times the marbles where drawn a green marble was not obtain.
 Generally the probability drawing m times is mathematically is mathematically represented as 
     
=>  