Peter runs 3 miles more than Andrew's 2 miles, so he runs 3+2 = <<3+2=5>>5 miles
Peter runs 5 miles a day and Andrew runs 2 miles so they run 5+2 = <<5+2=7>>7 miles a day
If they run 7 miles a day then over a course of 5 days they run 7*5 = <<7*5=35>>35 miles
#### 35