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19 January, 09:09

A T-shirt shop charges $15 for an adult shirt and $12 for a youth shirt. The total charge for a shirt order was $489. Which equation can be used to represent x, the number of adult shirts sold and y, the number of youth shirts sold?

12x + 15y = 489

27x + 15y = 489

15x + 12y = 489

15x + 3y = 489

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Answers (2)
  1. 19 January, 09:22
    0
    x, the number of adult shirts

    y, the number of youth shirts

    $15 for an adult shirt and $12 for a youth shirt. The total charge for a shirt order was $489.

    15x + 12y = 489

    Answer

    15x + 12y = 489
  2. 19 January, 09:32
    0
    The answer to this question is C : 15x + 12y = 489.

    WHY?

    It asks for the number of adult shirts (x represents how much was sold) and youth shirts (y represents how much was sold). $15 was for an adult shirt and $12 was for a youth shirt.

    THAT'S WHY

    15x + 12y = 489

    ^ + ^ = ^

    adult + youth = total amount
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