SOLUTION: Two bicyclists are 200 miles apart when they start racing towards one another. If their speeds are 12 mph and 6 mph respectively, how much time will elapse before they are 20 miles

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Two bicyclists are 200 miles apart when they start racing towards one another. If their speeds are 12 mph and 6 mph respectively, how much time will elapse before they are 20 miles      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 916639: Two bicyclists are 200 miles apart when they start racing towards one another. If their speeds are 12 mph and 6 mph respectively, how much time will elapse before they are 20 miles apart?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
D = rt
t how much time will elapse before they are 20 miles apart
(12mph)t + (6mph)t = 180mi
18t = 18
t = 10hrs, the time that will elapse before they are 20 miles apart