Question
The total mass of Sabrina, Risa and Linda is 20k kg. Sabrina has a mass of 8k kg. Risa is 9 kg heavier than Sabrina.
  1. What is Linda's mass in terms of k?
  2. If k = 10, what is Linda's mass? 
3 m
(a)

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(b)

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The total mass of Sabrina, Risa and Linda is 20k kg. Sabrina has a mass of 8k kg. Risa is 9 kg heavier than Sabrina.
  1. What is Linda's mass in terms of k?
  2. If k = 10, what is Linda's mass?