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The elevation at ground level is 0 feet. An elevator starts 90 feet below ground level. After traveling for 15 seconds, the elevator is 20 feet below ground level. Which statement describes the elevator's rate of change in elevation during this 15-second interval? Please help

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taskmasters
Unfortunately there was no choice in which we can choose our answer to this item. However, looking into the situation given in this item, it may be deduced that the distance traveled by the elevator after 15 seconds is equal to 70 ft. The rate of change in elevation of the elevator is therefore 70ft/15s which is also equal to 4.67 ft/s. 
Veerasami

Answer:

here are the statements

Step-by-step explanation:

The elevator traveled upwards at a rate of 6 feet per second.

The elevator traveled upwards at a rate of 4 ⅔ feet per second.

The elevator traveled downward at a rate of 6 feet per second.

The elevator traveled downward at a rate of 4 ⅔ feet per second.

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