Question
The total mass of Min, Erika and Sabrina is 43j kg. Min has a mass of 9j kg. Erika is 3 kg heavier than Min.
  1. What is Sabrina's mass in terms of j?
  2. If j = 12, what is Sabrina's mass? 
3 m
(a)

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(b)

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The total mass of Min, Erika and Sabrina is 43j kg. Min has a mass of 9j kg. Erika is 3 kg heavier than Min.
  1. What is Sabrina's mass in terms of j?
  2. If j = 12, what is Sabrina's mass?