Hey there! 
12/14
• BOTH NUMBERS HAVE THE COMMON FACTOR OF 2, SO WE CAN DIVIDE BOTH THE NUMERATOR (TOP number) FROM THE DENOMINATOR (BOTTOM number) 
= 12 ÷ 2 / 14 ÷ 2
= 6/7
= 18/21
Therefore, your answer is: 6/7 or 18/21
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
 
        
                    
             
        
        
            
            
                what is the mean of the set : 95,45,37,82,90,100,91,78,67,84,85,85,82,91,93,92,76,84,100,59,92,77,68,88 
                zmey [24]             
         
        
Answer:
The mean is 80.875
Step-by-step explanation:
 
        
             
        
        
        
Answer:
21
Step-by-step explanation:
 
        
             
        
        
        
Answer:
P(A∩B) = 0.522
Step-by-step explanation:
Let's call A the event that a puppy is adopted and B the probability that a puppy live 7 or more years
So, the probability P(A∩B) that a randomly selected puppy in the shelter will get adopted and live 7 or more years is:
P(A∩B) = P(A)*P(B/A)
Because A and B are not independents.
Then, the probability P(A) that a puppy is adopted is 58% and the probability P(B/A) that a puppy live 7 or more years given that the puppy is adopted is 90%.
Finally, replacing the values, we get:
P(A∩B) = 0.58*0.9 = 0.522
It means that the 52.2% of the puppies are adopted and live 7 or more years.
 
        
             
        
        
        
For this case, the first thing we must do is define a variable.
 We have then:
 x: unknown number
 We now write the equation that models the problem:

 From here, we clear the value of x.
 We multiply both sides of the equation by 2:
 
 We subtract 30 on both sides of the equation:
 
 Answer:
 The value of the unknown number is given by:
 