## anonymous 5 years ago I m sitll haveing problems with this problem. Not sure how to get this answer. The grade of a road is just the slope converted into a percent. So when you find the slope, multiply by 100 to get the grade. Again we use only non-negative slopes. A road rises 12 feet over a horizontal distance of 640 feet. What is its slope? What is its grade?

1. anonymous

$tan \theta = 12/640$

2. anonymous

So grade is equal to $(12/640) \times 100$

3. anonymous

1.875

4. anonymous

Is it clear

5. anonymous

Is it clear ?

6. anonymous

yes it is

7. anonymous

Okay, bye then