SOLUTION: driving down a mountain, tom finds that he has descended 1800 ft in elevation by the time, he is 3.25 mi horizontally away from the top of the mountain. find the slope of his desce

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Question 27517: driving down a mountain, tom finds that he has descended 1800 ft in elevation by the time, he is 3.25 mi horizontally away from the top of the mountain. find the slope of his descent to the nearest hundredth.
i started with y=3.25x+1800. i dont know how to work it out from there
Answer by stanbon(48558) About Me  (Show Source):
You can put this solution on YOUR website!
Driving down a mountain, Tom finds that he has descended 1800 ft in elevation by the time he is 3.25 mi. horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth.
Draw the picture.
slope = (descent in ft.)/(horizontal distance in feet)
= 1800/ [3.25 (5280)]
= 1800/ 17160= 0.10 ft. of decent per 1 ft of horizontal distance
Cheers,
Stan H.