Question

After robbing a bank in Dodge City, a robber gallops off at 14 mi/h. 30 minutes later, the marshall leaves to pursue the robber at 15 mi/h. How long (in hours) does it take the marshall to catch up to the robber?

Answer 1

A bit more than 7 hours is a rough estimate..

Answer 2

how did you get it?

Answer 3

robber = R
marshall = M
Robber gets 30 minute head start, which @ 14 mph, is 7 miles.
Therefore, if X is the distance..

14X + 7 = 15X
-14X -14X
7 = X
So, it will take 7 hours. Which makes sense. He is 7 miles ahead, and the marshall is going 1 mile per hour faster.

Answer 4

thanks

Answer 5

the robber gallops... lol