Answer: (A)
Step-by-step explanation:
Let m be the fixed rate charged by Kevin and n be the fixed delivery fee.
Equation for total charge: , where y is the amount of money ( in dollars) Kevin will charge when he makes a trip of x miles to deliver groceries.
Then, the system of equation for the given descriptions will be :-
Subtract equation (2) from equation (1), we get
Divide both sides by 5 , we get
Put m= 0.55 in (2), we get
Now, the equation could be used to determine the amount of money (y), in dollars, Kevin will charge when he makes a trip of x miles to deliver groceries will be :