Question
The total mass of Emma, Shannon and Betty is 38x kg. Emma has a mass of 4x kg. Shannon is 9 kg heavier than Emma.
  1. What is Betty's mass in terms of x?
  2. If x = 13, what is Betty's mass? 
3 m
(a)

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(b)

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The total mass of Emma, Shannon and Betty is 38x kg. Emma has a mass of 4x kg. Shannon is 9 kg heavier than Emma.
  1. What is Betty's mass in terms of x?
  2. If x = 13, what is Betty's mass?