Question
The total mass of Jaslyn, Esther and Tammy is 21f kg. Jaslyn has a mass of 5f kg. Esther is 7 kg heavier than Jaslyn.
  1. What is Tammy's mass in terms of f?
  2. If f = 15, what is Tammy's mass? 
3 m
(a)

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(b)

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The total mass of Jaslyn, Esther and Tammy is 21f kg. Jaslyn has a mass of 5f kg. Esther is 7 kg heavier than Jaslyn.
  1. What is Tammy's mass in terms of f?
  2. If f = 15, what is Tammy's mass?