Question

Kevin and Conner are selling subs and sandwiches for a fundraiser. Kevin sold 25 subs and 18 sandwiches for a total of $209.50. COnner sold 15 subs and 20 sandwiches for a total of $162.50. Find the cost of a sub and the cost of a sandwich

Answer 1

25x + 18y= 209.50

15x+ 20y = 162.50

Explanation:

Answer 2

1 sub = $5.50; 1 sandwich = $4.00

Explanation:

You can solve this using a matrix and solving using reduced row-echelon form.