Question
The total mass of Xandra, Zoe and Julie is 29r kg. Xandra has a mass of 8r kg. Zoe is 9 kg heavier than Xandra.
  1. What is Julie's mass in terms of r?
  2. If r = 10, what is Julie's mass? 
3 m
(a)

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(b)

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The total mass of Xandra, Zoe and Julie is 29r kg. Xandra has a mass of 8r kg. Zoe is 9 kg heavier than Xandra.
  1. What is Julie's mass in terms of r?
  2. If r = 10, what is Julie's mass?