Question
The total mass of Gwen, Tammy and Pamela is 40w kg. Gwen has a mass of 4w kg. Tammy is 7 kg heavier than Gwen.
  1. What is Pamela's mass in terms of w?
  2. If w = 13, what is Pamela's mass? 
3 m
(a)

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(b)

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The total mass of Gwen, Tammy and Pamela is 40w kg. Gwen has a mass of 4w kg. Tammy is 7 kg heavier than Gwen.
  1. What is Pamela's mass in terms of w?
  2. If w = 13, what is Pamela's mass?