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Answer: 414 feet per minute.

Step-by-step explanation:

Given : A snowboarder descends from an elevation of 2253 feet to an elevation of 1011 feet in 3 minutes.

Then, the mean change in elevation per minute is given by :-

[tex]\dfrac{\text{Change in elevation}}{\text{Time}}\\\\=\dfrac{2253-1011}{3}=414[/tex]

Therefore. the mean change in elevation per minute = 414 feet per minute.

The  mean change in elevation per minute 414

per minute

Mean change in elevation per minute=(2253 feet-1011 feet) / 3 minutes

Mean change in elevation per minute=1242 feet/ 3 minutes

Mean change in elevation per minute=414 per minute

Inconclusion  the mean change in elevation per minute is 414 per minute.

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