20 At a certain time, 55 vehicles enter junction A; 20, 15 and 20 vehicles leave the intersections B, C and D, respectively. f3 a) In this period of time fi, fi, fa, fa. fs 5A 15 f2 Find out how many vehicles pass through each of the streets by creating and solving a system of linear equations. b) If the BC road is blocked, in what range should the number of cars crossing AD be so that no more than 30 vehicles pass on any road? D 20
20 At a certain time, 55 vehicles enter junction A; 20, 15 and 20 vehicles leave the intersections B, C and D, respectively. f3 a) In this period of time fi, fi, fa, fa. fs 5A 15 f2 Find out how many vehicles pass through each of the streets by creating and solving a system of linear equations. b) If the BC road is blocked, in what range should the number of cars crossing AD be so that no more than 30 vehicles pass on any road? D 20
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:20
B
At a certain time, 55 vehicles enter junction A; 20, 15 and 20
vehicles leave the intersections B, C and D, respectively.
f3
a) In this period of time f1, fr. fa. fa. fs
55 A
15
Find out how many vehicles pass through each of the streets
by creating and solving a system of linear equations.
b) If the BC road is blocked, in what range should the number
of cars crossing AD be so that no more than 30 vehicles pass
on any road?
20
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