Answer: -81/35
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
 37/40
Step-by-step explanation:
There are 3 numbers between 1 and 40 that are a multiple of 13: 13,26,39.
So, your probability should be 40-3/40, = 37/40.
 
        
                    
             
        
        
        
Answer:
2(a - 4) + 5(b + 1) = 8. The result of this equation when solving is a = - 5b/2 + 11/2.
3(a - 1) - 2(b - 2) = -11. The result of this equation when solving is a = 2b/3 - 4.
Step-by-step explanation:
Hope this helps =)
 
        
             
        
        
        
Answer:
750 
Step-by-step explanation:
10 times 5 times 15