SOLUTION: An airplane covered 9 miles of its route while decreasing its altitude by 36,000 feet. Find the slope of the airplane's line of descent. Round to the nearest hundredth. [Hint: 1
Question 92573: An airplane covered 9 miles of its route while decreasing its altitude by 36,000 feet. Find the slope of the airplane's line of descent. Round to the nearest hundredth. [Hint: 1 mi = 5280 feet.]
A) -0.55 B) -0.23 C) -0.76 D) – 0.11
Ok, I got an answer but I want to make sure that mine is correct. Answer by bucky(2189) (Show Source):
You can put this solution on YOUR website! The answer is C
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The vertical distance is a negative 36,000 feet which you need to divide by 5,280 ft to find
the number of miles of the descent. The result of this division is:
.
.
where the negative sign identifies the fact that the plane is dropping instead rising. The
altitude is decreasing, not increasing.
.
Slope is defined as the vertical change divided by the corresponding horizontal change.
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The vertical change is -6.818182 and the corresponding horizontal change is 9 miles. The
slope is the division of the horizontal change into the corresponding vertical change which
is:
.
.
This rounds to a slope of -0.76 which is answer C.
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