Answer:

Step-by-step explanation:
<h3>METHOD 1:</h3>

<h3>METHOD 2:</h3>

 
        
             
        
        
        
1.
25%
.3 + .2 + .15 + .1 = .75
1.00 - .75 = .25
2. 
120 students
There are 400 total students
.3 * 400 = 120
4.
tennis-
.1 * 400 = 40 students prefer tennis
football-
.25 * 400 = 100 students prefer football
140 students like football/tennis
5. 
400 students
There are four quarters in a whole
.25% = 100
100 * 4 = 400
 
        
             
        
        
        
b. Suppose you have $10, and are going to play until you go broke or have $30. What is your best strategy for playing? Explain using information you learned in this module's material, such as expected value
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Given


The given system is  can be represented by
 can be represented by 

The given system is consistent when determinant of A is not equal to zero 



i.e. system is consistent for all value of k except 

                  
 
        
                    
             
        
        
        
We have the same workbook lol
The answer is
Drums: 2/4
milks 4/9
(unless your teacher wants it improper.)