The figure shows the flow of traffic (in vehicles per hour) through a network of streets....

 

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The figure shows the flow of traffic (in vehicles per hour) through a network of streets. (Assume a = 300 and b = 600.) a- X1 (a) Solve this system for x,, i = 1, 2, 3, 4. (If the system has an infinite number of solutions, express X, X2, X3, and x4 in terms of the parameter t.) (X1, X2, X3, X4) = (b) Find the traffic flow when X4 = 0. 1) (X1, X2, X3, X4) = X4 ([ (X1, X2, X3, X4) = (c) Find the traffic flow when x4 = 300. - (C (d) Find the traffic flow when X = 3x2. (X1, X2, X3, X4) = The figure shows the flow of traffic (in vehicles per hour) through a network of streets. (Assume a = 300 and b = 600.) a- X1 (a) Solve this system for x,, i = 1, 2, 3, 4. (If the system has an infinite number of solutions, express X, X2, X3, and x4 in terms of the parameter t.) (X1, X2, X3, X4) = (b) Find the traffic flow when X4 = 0. 1) (X1, X2, X3, X4) = X4 ([ (X1, X2, X3, X4) = (c) Find the traffic flow when x4 = 300. - (C (d) Find the traffic flow when X = 3x2. (X1, X2, X3, X4) =