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In a certain skyscraper, the elevator whisk you a restaurant in the skyscraper at a speed of 500 fe...
4 months ago
Q:
In a certain skyscraper, the elevator whisk you a restaurant in the skyscraper at a speed of 500 feet in 60 seconds. If the restaurant is 300 feet up, how long will it take you to reach the restaurant by elevator?
Accepted Solution
A:
[tex]\bf \begin{array}{ccll} feet&seconds\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 500&60\\ 300&x \end{array}\implies \cfrac{500}{300}=\cfrac{60}{x}\implies \cfrac{5}{3}=\cfrac{60}{x}\implies x=\cfrac{3\cdot 60}{5}[/tex]