SOLUTION: Walking, peter could reach school in 20 mins. His mother can drive him to school in 6 mins. One day Peter left school at exactly 3:00 and started walking home. At the same time his

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Walking, peter could reach school in 20 mins. His mother can drive him to school in 6 mins. One day Peter left school at exactly 3:00 and started walking home. At the same time his      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 927640: Walking, peter could reach school in 20 mins. His mother can drive him to school in 6 mins. One day Peter left school at exactly 3:00 and started walking home. At the same time his mother started her journey from home to school to pick him up. At what time did the mother meet Peter?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Put the attention to amount of time instead of points in time. The distance from home to school is d. The time each travels until meeting is t.


____________________speed________time__________distance
Peter______________d/20___________t____________d=(d/20)t
Mom________________d/6____________t____________d=(d/6)t

highlight%28%28d%2F20%29t%2B%28d%2F6%29t=d%29, the total of their traveled distances must be d. Seeing that left and right sides have the same factor of d, you can solve the equation for t. MINUTES.