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11 October, 17:45

Kuri spent a total of $68 on trading cards. His collection contains two types of cards. A pack of trading card A cost $4, and a pack of trading card B cost $7. How many packs of each type of trading card were purchased if the total number of packs is 11

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  1. 11 October, 17:59
    0
    Let x = the number of packs for trading card A

    Let y = the number of packs for trading card B

    x + y = 11

    4x + 7y = 68

    Try and solve for y first

    x = 11 - y

    Substitute

    4 (11 - y) + y = 68

    Y = 8 then x = 3
  2. 11 October, 18:07
    0
    4a+7b=68 go to mathpapa
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