Question
The total mass of Lee and Tammy is 8423 kg. Lee weighs 34711 kg. 
  1. What is Tammy's mass?
  2. How much heavier than Lee is Tammy?
4 m
(a)

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(b)

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The total mass of Lee and Tammy is 8423 kg. Lee weighs 34711 kg. 
  1. What is Tammy's mass?
  2. How much heavier than Lee is Tammy?