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math

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Gina cut a piece of ribbon into 3 equal pieces. Then she cut 2 inches off one piece to make a piece 3 inches long. How long was Gina's original piece of ribbon?

  • math -

    let the original piece be 3x
    after 1st cut, each piece is x inches long
    2 inches off one of those pieces leaves x-2

    but x-2 = 3
    x = 5

    So the original length was 15 inches

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