Question
The total mass of Anna, Kimberly and Gwen is 20m kg. Anna has a mass of 6m kg. Kimberly is 4 kg heavier than Anna.
  1. What is Gwen's mass in terms of m?
  2. If m = 9, what is Gwen's mass? 
3 m
(a)

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(b)

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The total mass of Anna, Kimberly and Gwen is 20m kg. Anna has a mass of 6m kg. Kimberly is 4 kg heavier than Anna.
  1. What is Gwen's mass in terms of m?
  2. If m = 9, what is Gwen's mass?