The relationship between the rise of the chair with respect to time is required.
The ski lift chair rises [tex]3.5\ \text{feet/s}[/tex]
Every [tex]4[/tex] seconds a ski lift chair rises [tex]14\ \text{feet}[/tex].
[tex]4\ \text{seconds}=14\ \text{feet}[/tex]
Divide by [tex]4[/tex] on both sides
[tex]1\ \text{second}=\dfrac{14}{4}=3.5\ \text{feet}[/tex]
The rate of the height increase of the ski lift chair is [tex]3.5\ \text{feet/s}[/tex]
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