Answer: The grade of the hill = 50%
Step-by-step explanation:
The grade is the slope( expressed as a percent). To evaluate the slope we divide the rise by the run.
Given: A hill on a hiking trail goes up to 69 feet over a distance of 138 feet.
So, rise= 69 feet , run = 138 feet.
The grade of the hill = [tex]\dfrac{rise}{run}\times100[/tex]
[tex]=\dfrac{69}{138}\times100=50\%[/tex]
Hence, the grade of the hill = 50%
