Question
The total mass of Anna, Emma and Gillian is 36r kg. Anna has a mass of 8r kg. Emma is 2 kg heavier than Anna.
  1. What is Gillian's mass in terms of r?
  2. If r = 9, what is Gillian's mass? 
3 m
(a)

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(b)

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The total mass of Anna, Emma and Gillian is 36r kg. Anna has a mass of 8r kg. Emma is 2 kg heavier than Anna.
  1. What is Gillian's mass in terms of r?
  2. If r = 9, what is Gillian's mass?