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A parachutist jumped from an airplane at an elevation of 11,880 feet above the ground.

A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?

Sagot :

RevyBreeze

Answer:

25.9 feet per second.

Step-by-step explanation:

For the first 14 seconds, the change in elevation was –65×14= –910 feet.

For the remaining 6.5 minutes, the change in elevation was –1,470×6.5 = –9,555 feet.

The overall change in elevation was –910+ –9,555= –10,465 feet.

The total number of seconds was

6.5×60=14+390=404 seconds. The Average change in elevation was −10,465÷404=25.9 feet per second.

[RevyBreeze]

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A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?A parachutist had an average change in elevation of –65 feet per second for the first 14 seconds, and –1,470 feet per minute for the remaining 6.5 minutes before he reached the ground. What was the average change in elevation in feet per second, rounded to the nearest tenth?

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