SOLUTION: Puan Chew bought 2.8 kg of prawns. After she removed the prawn shells,the mass of the prawn is reduced by 0.2.Puan Chew used the prawn shells and 0.45 kg of prawn shells in the fri

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Question 895468: Puan Chew bought 2.8 kg of prawns. After she removed the prawn shells,the mass of the prawn is reduced by 0.2.Puan Chew used the prawn shells and 0.45 kg of prawn shells in the fridge to prepare prawn noodle soup. What is the mass, in g, of prawn shells Puan Chew used to prepare the soup?
Answer by stanbon(75887) About Me  (Show Source):
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Puan Chew bought 2.8 kg of prawns. After she removed the prawn shells,the mass of the prawn is reduced by 0.2.Puan Chew used the prawn shells and 0.45 kg of prawn shells in the fridge to prepare prawn noodle soup. What is the mass, in g, of prawn shells Puan Chew used to prepare the soup?
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Ans: 45 + 0.2*2.8 = 45.56g
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Cheers,
Stan H.
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