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Answer:</u></h2>
Which ordered pairs are in the solution set of the system of linear inequalities?
y > Negative one-halfx
y < One-halfx + 1 
On a coordinate plane, 2 straight lines are shown. The first solid line has a negative slope and goes through (0, 0) and (4, negative 2). Everything above the line is shaded. The second dashed line has a positive slope and goes through (negative 2, 0) and (2, 2). Everything below the line is shaded. 
(5, –2), (3, 1), (–4, 2)
(5, –2), (3, –1), (4, –3)
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(5, –2), (3, 1), (4, 2)</u></h2>
(5, –2), (–3, 1), (4, 2)
Step-by-step explanation:
 
        
        
        
Answer:
yes
Step-by-step explanation:
if you break it down on paper ( which btw i get why you didnt want to do it) you get 39
 
        
                    
             
        
        
        
Okay, so supplementary angles = 180 degrees. 
Starting equation : 4y + 7 + 9y + 4 = 180 
Combine like terms : 13y + 11 = 180 
Subtract 11 from both sides : 13y = 169 
Divide 13 from both sides : y = 13
Insert y value into original m<2 equation : 9(13) + 4 
Solve : 121 degrees
If you want to check your work, all you have to do is insert y value into original m<1 equation and then add both m<1 and m<2. If they equal 180, your answer is correct. 
4(13) + 7 = 59
59 + 121 = 180
 
        
                    
             
        
        
        
Answer: 96 adult tickets were sold.
Step-by-step explanation:
Let x represent the number of adult tickets that were sold.
Let y represent the number of students tickets that were sold.
For the last basketball game, 381 tickets were sold. This means that 
x + y = 381
Adult tickets sold for $7, and student tickets sold for $3. If the ticket sales totaled 1,527, it means that 
7x + 3y = 1527 - - - - - - - - - - - -1
Substituting x = 381 - y into equation 1, it becomes
7(381 - y) + 3y = 1527
2667 - 7y + 3y = 1527
- 7y + 3y = 1527 - 2667
- 4y = - 1140
y = - 1140/- 4
y = 285
 x = 381 - y = 381 - 285
x = 96