human
John jogs at a speed of 4 miles per hour when he runs alone, but runs at 6 miles per hour when he is being dragged by his 100-pound German Shepherd dog. If John and his dog go on a run together for 30 minutes, and then John runs for an additional 30 minutes by himself, how far will John have traveled?
assistant
How far does John run with his dog? ** John runs at 6 miles per hour for 0.5 hours, for a distance of 6*0.5=<<6*0.5=3>>3 miles.
How far does John run by himself? ** Then John runs at 4 miles per hour for 0.5 hours, for a distance of 4*0.5=<<4*0.5=2>>2 miles.
How far does John run in total? ** In total, John runs 3+2=<<3+2=5>>5 miles.
#### 5