4 is probably the answer. Hope this helps. :)
        
                    
             
        
        
        
Answer:
60
Step-by-step explanation:
Substitute 50 for y in the formula
5x+10y=800
5x+10*50=800
5x+500=800
5x=800-500
5x=300
x=300/5
x=60
 
        
                    
             
        
        
        
It is 32% I'm pretty sure
 
        
                    
             
        
        
        
Answer:
4 hours
Step-by-step explanation:
If it took them together with a total of 6 hours and Oliver is half as fast meaning Jose is faster it will take Jose 4 hours.
A simple equation is 
6= 4+2
And the 2 would be Oliver since Oliver is half as fast.
 
        
             
        
        
        
Answer:
2. The oil company wants to transport 27L/min of oil through the pipes. Find the maximum
flow of oil that can flow through the pipes (per minute) to show that this demand cannot
be met. Clearly explain how you have found the maximum flow.
D
2
A
10
4
5
8
F
6
с
17
12
B.
12
G
E