Question: Hi can you help me answer this question. Im trying to find the solution through row echelon and the constraints on the variables 4. The

Hi can you help me answer this question. Im trying to find the solution through row echelon and the constraints on the variables

4. The accompanying figure shows a network of one-way streets with traffic flowing in the directions indicated. The flow rates along the streets are measured as the average number of vehi- cles per hour. a. Set up a linear system whose solution provides the unknown flow rates. b. Solve the system for the unknown flow rates. c. Is it possible to close the road from A to B for construction and keep traffic flowing on the other streets? Explain. 1 300 200 1 100 500 A B 600 X 3 A X4 X'S 400 450 X6 X7 350 1 600 400

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