The system of equations that can be used to determine the number of small tables and the number of large tables the designer will make is: 
y -x = 8 
$12y - $6x = $236
<h3>Defining the variables </h3>
Let: 
x = number of large tables the designer can make.
x = number of small tables the designer can make.
<h3>Simultaneous equations</h3>
Simultaneous equations are sets of equations that must be solved together in order to determine the required variables. Methods of solving simultaneous equations include: 
- Elimination method
- substitution method 
- Graph method
To learn more about simultaneous equations, please check: brainly.com/question/25875552
 
        
             
        
        
        
You know the formula for calculating the lateral area of a cylinder with a radius r and height h is S=2*π*r*h
So we have S= 2*π*6*20= 240π
Have fun
        
                    
             
        
        
        
Answer:
4cm
Step-by-step explanation:
40÷10=4 and each dm is 10 km
 
        
             
        
        
        
The probability of selecting two red marbles would be 1/19