Question

The fastest elevators in the Burj Khalifa can travel 330 feet in just 10 seconds. How far does the

elevator travel in 11 seconds? Explain your reasoning.

Answer 1

`363ft`

Explanation:

First we know that the elevator can travel 330 feet in just 10 seconds. That's can be interpret as:

`(330ft)/(10s) = (33ft)/(1s)`

How you can see each second the elevator travel 33 feet so if you want to know how many travel in 11 second you only have to multiply by 11 the 33ft.

`33ft \cdot 11s = 363ft`

Answer 2

363 feet = 11 seconds

Explanation:

330 feet = 10 seconds

=> 330/10 feet = 10/10 seconds

=> 33 feet = 1 second

=> 33 × 11 feet = 11 × 1 second

=> 363 feet = 11 seconds.

Therefore, the Burj Khalifa can travel 363 feet in 11 seconds.