Question
The total mass of Fred and Joelle is 7814 kg. Fred weighs 301011 kg. 
  1. What is Joelle's mass?
  2. How much heavier than Fred is Joelle?
4 m
(a)

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(b)

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The total mass of Fred and Joelle is 7814 kg. Fred weighs 301011 kg. 
  1. What is Joelle's mass?
  2. How much heavier than Fred is Joelle?