SOLUTION: one plane at 520 feet is ascending at the rate of 40 ft per minute, while another plane at 3800 ft is
descending at the rate of 120 ft per minute.
How long will it take the 2 p
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Question 386250: one plane at 520 feet is ascending at the rate of 40 ft per minute, while another plane at 3800 ft is
descending at the rate of 120 ft per minute.
How long will it take the 2 planes to be at the same altitude?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
one plane at 520 feet is ascending at the rate of 40 ft per minute, while another plane at 3800 ft is
descending at the rate of 120 ft per minute.
How long will it take the 2 planes to be at the same altitude?
...
the difference between their heights = distance d
3800-520=3280 feet
..
their combined speed is 40+120=160 ft/minute =r
t=d/r
,,,
3280/160
=20.5 minute
minutes
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