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3 November, 01:32

For every 3 packages that Marcella wraps, she uses 12 of a roll of wrapping paper.

If she uses 2/12 rolls of wrapping paper, how many packages has she wrapped?

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  1. 3 November, 03:59
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    For every 3 packages, she uses 1/2 a roll of wrapping paper

    if she uses 2 1/2 rolls ...

    (2 1/2) / (1/2) ... * 3

    (5/2) / (1/2) ... * 3

    (5/2 * 2) * 3

    5 * 3 =

    15 packages <===
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