In this case all you do is add all the numbers, answer is 100
        
             
        
        
        
The trapezoid has one pair of parallel sides. 
        
                    
             
        
        
        
The inequality is solved, and then, the graph is given at the end of this question.
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- 87 tickets have already been sold.
- x can still be sold.
- In total, the number of tickets sold is 87 + x.
- The airplane can seat 175 passengers, thus, the total can be at most 175, that is:



- The solution is given on a graph at the end of this answer.
A similar problem is given at brainly.com/question/24132092
 
        
             
        
        
        
The value of x is 27
Explanation: 
5x-50=3x+4
5x-3x=4+50
2x=54
x=27
        
             
        
        
        
Given:


The equation is:

To find:
The ordered pair to represent t in the given equation.
Solution:
We have,

Substituting the given values, we get




Therefore, the ordered pair to represent t in the given equation is (2,2).