gabrielduboy
gabrielduboy
03.09.2020 • 
Mathematics

Two groups of tourists are on the same floor of a skyscraper they are visiting, and they board adjacent elevators at the same time. The first group is headed up at a speed of 950 feet per minute. The second is headed down at a speed of 400 feet per minute. How long will it be before the elevators are 710 feet apart? If necessary, round your answer to the nearest second.

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