Solve thisA sandwich store charges a delivery fee to bring lunch to an office. One office pays $40.50 for 5 meatball sandwiches. Another office pays $66.50 for 9 meat ball sandwichesA. How much does each meatball sandwich add to the cost of delivery?B. What is the delivery fee
Accepted Solution
A:
A sandwich store charges a delivery fee to bring lunch to an office. Delivery cost - DMeatball sandwich cost - MOne office pays $40.50 for 5 meatball sandwiches. 40.50 = 5M + DAnother office pays $66.50 for 9 meat ball sandwiches66.50 = 9M + DA. How much does each meatball sandwich add to the cost of delivery?D = 40.50 - 5M = 66.50 - 9M40.50 - 5M = 66.50 - 9M9M - 5M = 66.50 - 40.504M = 26.00M = 6.50B. What is the delivery fee D = 40.50 - 5M = 40.50 - 5(6.50) = 40.50 - 32.50 = 8.00Check66.50 = 9M + D = 9(6.50) + 8 = 58.50 + 8.00 = 66.50