SOLUTION: An airplane traveling at 225 mph is descending at an angle of 5 degrees. How many miles will the plane decrease in altitude in 7 minutes? After getting the question wrong on

Question 742856: An airplane traveling at 225 mph is descending at an angle of 5 degrees. How many miles will the plane decrease in altitude in 7 minutes?
After getting the question wrong on my practice test I was able to see that the answer was 2.3 How is this answer possible? I got 1726.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
An airplane traveling at 225 mph is descending at an angle of 5 degrees. How many miles will the plane decrease in altitude in 7 minutes?
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Vertical speed = 225*sin(5) = 19.61 mi/hr
change = 19.61 mi/hr * (1/60) hr/min * 7 min
=~ 2.2878 miles

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