Posted by Caroline on .
Driving down Bald Mountain in Wyoming, Bob dean finds that he descends 1600 feet in elevation by the time he is 2.5 miles (horizontally) away from the high point on the mountain road. Find the slope of his descent (Hint: 1 mile = 5280 feet)
After converting the miles to feet I got 1600/13200. After that I found a number in common of 400 which gave me my answer of 4/33 as the slope.
I feel like I did this wrong and when I go to look at the examples in my book it doesn't show any for this type of problem. So if you could help me I would really appreciate it.

PreCalculus 
Steve,
looks good to me.
slope = ∆y/∆x = 1600/13200 = 4/33