Solve.
-An inclined walkway leading to a new building is to rise 8 inches for each horizontal distance of 12 feet. Write this slope as a grade. (Round to the nearest tenth of a percent if necessary.)
A)150.0%
B)1800.0%
C)5.6%
D)66.7%

Question

Quizplus · Accepted Answer

To find the slope as a grade, we need to use the formula:
Grade = (rise/run) x 100%
In this case, the rise is 8 inches and the run is 12 feet. To convert 12 feet to inches, we multiply by 12:
12 feet = 12 x 12 = 144 inches
So, the slope as a grade is:
Grade = (8/144) x 100% ≈ 5.6% (rounded to the nearest tenth)
Therefore, the best choice is C.

Solve. -An Inclined Walkway Leading to a New Building Is to to Rise