The degree is 3 because that is the highest exponent in the equation
        
             
        
        
        
6x+7y=32 and 2x+5y=16
if you add the two equations you get the first answer and if you subtract the two equations you get the second answer
        
             
        
        
        
Answer:
a = 55/6 
Step-by-step explanation:
<u>Solving in steps:</u>
- 3/5a = 5 1/2
 - 3/5a = 11/2
 - a = 11/2 : 3/5
 - a = 11/2*5/3
 - a = 55/6  or  9 1/6
 
 
        
             
        
        
        
Answer:
   $43.20
Step-by-step explanation:
If each family member buys one ticket and one lunch, then for ticket price t we have the total expenditure as ...
   5(t +6.50) = 248.50
   t +6.50 = 49.70 . . . . . divide by 5
   t = 43.20 . . . . . . . . . . subtract 6.50
The price of each train ticket is $43.20.
 
        
             
        
        
        
Answer:
1/4 is the common ratio for the geometric sequence