Answer:
A
Step-by-step explanation:
The lines cross or touch the X-Axis 4 times which means that there are 4 solutions.
 
        
             
        
        
        
Let x = times in the pool
Let y = times in the basketball courts
42=3x+5y
x+y=12
Therefore y = 12-x
Subsitute for y
42 = 3x + 5(12-x)
42 = 3x + 60 -5x
Subtract 60
-18 = -2x
9 = x
The person used the pool 9 times.
        
             
        
        
        
Answer:
- 24 - 5x
Step-by-step explanation:
1) Remove Parentheses
-2 - 3x - 6 - 9 - 7 + x - 3x
2) Collect like terms
( -2 - 6 - 9 - 7) + (-3x+x-3x)
3) Simplify
 
        
             
        
        
        
Answer:
26
Step-by-step explanation:
3x2=6
6+15x/x+5    x cancels itself out
6+15+5=26
 
        
             
        
        
        
Answer:
Is there any more information? We can not help answer with that much information
Step-by-step explanation: