Answer:
50 stuffed animals and 22 mystery boxes.
Step-by-step explanation:
Firstly, we assign variables.
Let the number of stuffed animals be x and the number of mystery boxes is y
The probability of selecting a stuffed animal is x/72 while the probability is selecting a mystery box is y/72
Now, since the total probability can be 1:
This means that
x/72 + y/72 = 1 •••••••(i)
 
        
                    
             
        
        
        
Answer:
<h2>12x - 20y = -9</h2>
Step-by-step explanation:
The standard form of an equation of a line:

We have

Convert
 <em>multiply both sides by 10</em>
          <em>multiply both sides by 10</em>
 <em>subtract 24x from both sides</em>
          <em>subtract 24x from both sides</em>
 <em>change the signs</em>
            <em>change the signs</em>
 <em>divide both sides by 2</em>
          <em>divide both sides by 2</em>

 
        
             
        
        
        
Answer:
x<3
Step-by-step explanation:
-5|1+2x|+6<-29
-5-10x+6<-29
-10x<-30
-----    ----
-10     -10
x<3
 
        
             
        
        
        
Answer: True.
 The ancient Greeks could bisect an angle using only a compass and straightedge.
Step-by-step explanation:
The ancient Greek mathematician <em>Euclid</em> who is known as inventor of geometry. 
The Greeks could not do arithmetic. They had only whole numbers. They do not have zero and negative numbers. 
Thus, Euclid and the another Greeks had the problem of finding the position of an angle bisector.
This lead to the constructions using compass and straightedge. Therefore, the straightedge has no markings. It is definitely not a graduated-rule. 
As a substitute for using arithmetic, Euclid and the Greeks learnt to solve the problems graphically by drawing shapes .