Question

5. A sandwich store charges a delivery fee to bring lunch to an office building.

One office
pays $33 for 4 turkey sandwiches. Another office pays :
pays $61 for 8 turkey sandwiches.
How much does each turkey sandwich add to the cost of the delivery? Explain how you
know.

Answer 1

$7

Explanation:

Let x be the cost of the turkey sandwiches and y be the cost of delivery:

4x+y=33

8x+y=61

Subtract the two equations to cancel out y:

-4x=-28

x=7

Each turkey sandwich costs $7