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Hello, Please i need help with these questions :) 1. (5 marks) The accompanying figure shows known flow rates of hydro- carbons into and out

Hello, Please i need help with these questions :)

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1. (5 marks) The accompanying figure shows known flow rates of hydro- carbons into and out of a network of pipes at an oil refinery. (a) Set up a linear system whose solution provides the un- known flow rates. (b) Solve the system for the unknown flow rates. (c) Find the flow rates and directions of flow if x; = 50 and Xeg = 0. 200

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