gary can hike 3 mph faster on level ground than on hilly terrain. Yesterday he hiked 31 miles, spending 2 hours on level ground and 5 hours on hilly terrain. What was his average speed on level ground?

Question

anonymous · Answer

really.

anonymous · Answer

Well, he hiked a total of 31 miles, and he did it in a total of 7 hours, so I am assuming his average speed would be 31miles/7 hours, which would yield 4.43 mph? Others feel free to chime in, but I feel like the other info given in the problem is not necessary to solve it.

anonymous · Answer

hmm...
it has to do with Distance Rate and TIme