Question
The total mass of Eva, Sarah and Vanessa is 23k kg. Eva has a mass of 6k kg. Sarah is 3 kg heavier than Eva.
  1. What is Vanessa's mass in terms of k?
  2. If k = 13, what is Vanessa's mass? 
3 m
(a)

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(b)

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The total mass of Eva, Sarah and Vanessa is 23k kg. Eva has a mass of 6k kg. Sarah is 3 kg heavier than Eva.
  1. What is Vanessa's mass in terms of k?
  2. If k = 13, what is Vanessa's mass?