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10 August, 15:19

A store is having a sale on chocolate chips and walnuts. For 3 pounds of chocolate chips and 5 pounds of walnuts, the total cost is $16. For 6 pounds of

chocolate chips and 2 pounds of walnuts, the total cost is $22. Find the cost for each pound of chocolate chips and each pound of walnuts.

Cost for each pound of chocolate chips: $

Cost for each pound of walnuts: $

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Answers (1)
  1. 10 August, 15:24
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    Step-by-step explanation:

    3c + 5w = 16

    6c + 2w = 22

    -6c - 10w = - 32

    6c + 2w = 22

    -8w = - 10

    w = 10/8 = 5/4 = $1.25 per lb

    3c + 5 (1.25) = 16

    3c + 6.25 = 16

    3c = 9.75

    c = $3.25 per lb
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