math
posted by JIM on .
You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home?

Consider going to home:
56=vt
going to work:
56=(v8)(t+10/60)
now solve. If you get stuck, repost. You have two equations, two unknowns.