Question
The total mass of Vanessa, Rachel and Kimberly is 40z kg. Vanessa has a mass of 8z kg. Rachel is 3 kg heavier than Vanessa.
  1. What is Kimberly's mass in terms of z?
  2. If z = 13, what is Kimberly's mass? 
3 m
(a)

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(b)

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The total mass of Vanessa, Rachel and Kimberly is 40z kg. Vanessa has a mass of 8z kg. Rachel is 3 kg heavier than Vanessa.
  1. What is Kimberly's mass in terms of z?
  2. If z = 13, what is Kimberly's mass?