SOLUTION: A runner starts at the beginning of a path and runs at a constant rate of 8 mi/hr. Five minutes later a second runner begins at the same point, running at a rate of 10 mi/hr. How l

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A runner starts at the beginning of a path and runs at a constant rate of 8 mi/hr. Five minutes later a second runner begins at the same point, running at a rate of 10 mi/hr. How l      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 373372: A runner starts at the beginning of a path and runs at a constant rate of 8 mi/hr. Five minutes later a second runner begins at the same point, running at a rate of 10 mi/hr. How long will it take the second runner to reach the first?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
8%2A%28t%2B1%2F12%29+=+10t,
8t+%2B+8%2F12+=+10t,
8t+%2B+2%2F3+=+10t,
2%2F3+=+2t,
t+=+1%2F3, one-third of an hour, or 20 minutes.