an airplane is at an altitude of 1,200 feet. It begins to ascend at a rate of 925 feet per minute. How many minutes will it take the plane to reach 16,000 feet.

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24-11-2014
Mathematics

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an airplane is at an altitude of 1,200 feet. It begins to ascend at a rate of 925 feet per minute. How many minutes will it take the plane to reach 16,000 feet.

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baseballbeast baseballbeast · Answer 1 · 2014-11-24T22:30:26-05:00

baseballbeast baseballbeast

24-11-2014

You start by subtracting: 16000-1200= 14800
Then you divide 14800 by how many feet the plane rises per minute
14800/945=16 minutes
The answer is 16 minutes

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MichaelLiu MichaelLiu · Answer 2 · 2014-11-24T22:38:19-05:00

MichaelLiu MichaelLiu

24-11-2014

16,000=925x + 1200
You want to find after how many minutes the plane will reach 16000. So you set 16000 as your "y". Your 925 is your slope because that's how much you're increasing by every minute. 1200 is your y int, because that's what you're starting at. 14,800=925x
x=16
16 minutes

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