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29 May, 07:58

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

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Answers (2)
  1. 29 May, 08:21
    0
    1 sub = $5.50; 1 sandwich = $4.00

    Step-by-step explanation:

    You can solve this using a matrix and solving using reduced row-echelon form.
  2. 29 May, 11:23
    0
    25x + 18y = 209.50

    15x + 20y = 162.50
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