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Which is steeper: the boat ramp or a road with a 12% grade? Explain. (Note: Road grade is the vertical increase divided by the horizontal distance)
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Which is steeper: the boat ramp or a road with a 12% grade? Explain. (Note: Road grade is the vertical increase divided by the horizontal distance)

User Thibsc
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1 Answer

2 votes
Slope = Rise / Run
Road grade is vertical increase ( Rise ) divided by the horizontal increase ( Run ).
The boat ramp:
Road Grade (B) = 6 ft / 36 ft = 1/6 = 0.167
The road:
Road Grade (R) = 12 % = 0.12
0.167 > 0.12
Answer: The boat ramp is steeper.
User Jeffshantz
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7.4k points
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