February 20, 2017

Homework Help: Pre-Calculus

Posted by Sam on Thursday, February 3, 2011 at 4:48pm.

74. Road Grade
When driving down a mountain road, you notice warning signs indicating that it is a "12% grade." This means that the slope of the road is -12/100. Approximate the amount of horizontal change in your position if you note from elevation markers that you have descended 2000 feet vertically.
I'm stuck I don't get it can you help. Whay do I need to find? Should I divide 2000ft. and -.12 to find the horizontal change?

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