I'm guessing that they took of in the same airport.
Each hour they will separate by 1260 miles or 21 miles each minute
2,000/21 = 95.23 minutes which is 1 hour and 35 minutes
Hope this helps :)
        
             
        
        
        
Ac=4 bx=y+4 doesn't make sense.  Perhaps you meant <span>Ac-4bx=y+4.  If this is not correct, ensure that you have copied down the original problem correctly.
</span>To solve  Ac-4bx=y+4  for y, subtract 4 from both sides of this equation.  You'll get:
Ac-4bx-4 = y+4 - 4, or y = ac-4bx - 4.
        
             
        
        
        
Answer:
the answer is 20. 10+4+6 is 20 
Step-by-step explanation: