SOLUTION: John and Peter are traveling to a science conference. John travels 110 miles in the same time Peter travels 140 miles. Peter travels 15 miles per hour faster than John. Find the av

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: John and Peter are traveling to a science conference. John travels 110 miles in the same time Peter travels 140 miles. Peter travels 15 miles per hour faster than John. Find the av      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1139841: John and Peter are traveling to a science conference. John travels 110 miles in the same time Peter travels 140 miles. Peter travels 15 miles per hour faster than John. Find the average rate of each person'
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
            SPEED       TIME              DISTANCE

John          r        t=110/r               110

Peter        r+15      t=140/(r+15)          140


110%2Fr=140%2F%28r%2B15%29
--
11%2Fr=14%2F%28r%2B15%29
11%28r%2B15%29=14r
11r%2B165=14r
3r=165
r=55,John
Peter, 70
--
AVERAGE: %2855%2B70%29%2F2=highlight%2862%261%2F2%29
.