# Chapter 6 - Systems of Equations and Inequalities - 6-4 Applications of Linear Systems - Practice and Problem-Solving Exercises - Page 391: 11

The traveler's speed off the walkway is 4ft/s, and the speed of the moving walkway is 2ft/s.

#### Work Step by Step

Let x = the traveler's speed off the walkway and let y = the speed of the moving walkway. We have the system: $x-y=2$ $x+y=6$ Use elimination to solve for x. $2x=8$ $x=4$ $\rightarrow y=2$ The traveler's speed off the walkway is 4ft/s, and the speed of the moving walkway is 2ft/s.

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