Bill drives his car 10 mph faster on the way home from work than he does going to work in rush hour. If it takes him 1 hrs. going and half an hour returning, how far away is his work?

3 answers

v
v+10

d = v*1
d = (v+10)*.5
so
v = .5 v + 5
.5 v = 5
v = 10
d = v*1 = 10 miles
Thank you.
You are welcome :)