SOLUTION: An eastbound bus left concord at noon. three hours later a westbound bus left the same station. if the buses traveled at the same rate and were 500 kilometers apart at 6 p.m., find

Question 386979: An eastbound bus left concord at noon. three hours later a westbound bus left the same station. if the buses traveled at the same rate and were 500 kilometers apart at 6 p.m., find the rate of each bus.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

D = r*t 

 buses traveled at the 'same rate' in opposite directions

 500 = r*6hr + r*3hr   (0ne traveled 6hrs, the other 3hrs)

solving for r

  500 = 9r

  500/9 = r

   55.56kmph  = rate of each bus

 CHECKING our Answer

  6hr*55.56kmph + 3h*55.56kmph = 500km 

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