Question

A motorcycle daredevil is planning a stunt to perform at a county fair. A ramp must be built to give him a 20%

grade, or slope. If the vertical height at the end of the ramp must be 19 ft to assure that the stunt is a success,
what must be the length of the horizontal run?
19

Answer 1

Answer: 95 feet

Explanation:

Let the length of the horizontal run be represented by x.

Slope Grade = (Rise/Run) × 100

20 = (19/x) × 100

20 = 1900/x

20x = 1900

x = 1900/20

x = 95

Therefore, the length of the horizontal run must be 95 feet