Question

The grade of a road is its slope written as a percent. Find the grade of the road shown.

Answer 1

Step-by-step explanation: To calculate a slope we can use the following formula

`\text{slope}=(rise)/(run)`

Below we can see the values for run and rise for our situation

So now we can calculate our slope as follows

`\begin{gathered} \text{slope}=(rise)/(run) \\ \text{slope}=(2)/(17) \\ \text{slope}=0.117647058 \end{gathered}`

To calculate the per cent we just need to multiply by 100% as follows

`\text{grade=0.117647058}\cdot100\cong11.8\%`

Final answer: The grade is 11.8%