a. The figure shows the intersections of a number of one-way streets. The numbers given represent traffic flow at a peak period (from 4 p.m. to 5:30 p.m.). Use the figure to write a linear system of six equations in seven variables based on the idea that at each intersection the number of cars entering must equal the number of cars leaving.

b. Use a graphing utility with a ref or rref command to find the complete solution to the system.

Transcribed Image Text:

800 600 117 Ct. 900 COLO X1 x6 113 Pl. 600 x2 95 Street x7 X4 CD X5 400 100 108 Ave. 104 Street 700 11 X3 CONTID 300 200 400