SOLUTION: Two runners leave from the same location traveling in opposite directions. The first runner is running at 8 mph and the second is running at 10 mph. How long have they been running

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Travel -> SOLUTION: Two runners leave from the same location traveling in opposite directions. The first runner is running at 8 mph and the second is running at 10 mph. How long have they been running      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 548973: Two runners leave from the same location traveling in opposite directions. The first runner is running at 8 mph and the second is running at 10 mph. How long have they been running when they are 36 miles apart?
Answer by mananth(12270) About Me  (Show Source):
You can put this solution on YOUR website!
They are running in opposite directions
so effective speed = 10+8 = 18 mph
d=36
time = 36/18 = 2 hours