Question
The total mass of Julie, Barbara and Sarah is 22t kg. Julie has a mass of 7t kg. Barbara is 8 kg heavier than Julie.
  1. What is Sarah's mass in terms of t?
  2. If t = 15, what is Sarah's mass? 
3 m
(a)

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(b)

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The total mass of Julie, Barbara and Sarah is 22t kg. Julie has a mass of 7t kg. Barbara is 8 kg heavier than Julie.
  1. What is Sarah's mass in terms of t?
  2. If t = 15, what is Sarah's mass?