The diagram below shows a one-way street network. In a certain period of time, 50 and 40 vehicles enter intersections A and C, respectively, and 30, 25 and 35 vehicles exit from the B, D and E junctions, respectively. a-) In this time period f1. f2. f3. f4. Linear equation for how many cars pass through each of f5 streets. Find it by creating and solving the system. b) Find the street with the highest traffic density.

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