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Rope p is 3 times as long as rope q. Rope q is 1m 10 cm shorter than rope r. Rope r is 1 m 30 cm shorter than rope p. What is the length of rope q? Express your answer in meters and centimeters

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  1. p=3q
    q = r-1.1
    r = p-1.3

    q = p-1.3-1.1
    q = 3q-2.4
    ...

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  2. Is 56cm

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  3. p=3q
    q = r-110
    r = p-130

    q = p-130-110
    q = 3q-240
    240+q = 3q
    240 = 2q
    120 = q

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