SOLUTION: Madeline made a certain trip by moped in 2 hours. It took her 2.5 hours to make the return trip, since her average speed returning was 12 km/h less than her speed going. Find Madel

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Question 1151332: Madeline made a certain trip by moped in 2 hours. It took her 2.5 hours to make the return trip, since her average speed returning was 12 km/h less than her speed going. Find Madeline's average speed in each direction.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
               SPEED       TIME      DISTANCE

GOING            r          2         d

RETURNING       r-12        2.5       d

2r=2.5%28r-12%29
2r=2.5r-30
0.5r=30
highlight%28r=60%29-----------the speed for going to.

highlight%2848%29-------------speed for returning.