SOLUTION: One racer can cycle 60km in the same time that another racer cycles 45km. If the first races cycles 10kph faster than the second, what’s the speed of each?

Algebra ->  Radicals -> SOLUTION: One racer can cycle 60km in the same time that another racer cycles 45km. If the first races cycles 10kph faster than the second, what’s the speed of each?      Log On


   

Question 1194916: One racer can cycle 60km in the same time that another racer cycles 45km. If the first races cycles 10kph faster than the second, what’s the speed of each?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
                   SPEEDS      TIMES      DISTANCES
firstracer          r+10          x          60
secondracer         r             x          45

x=x
system%28x=60%2F%28r%2B10%29%2Cand%2Cx=45%2Fr%29

60%2F%28r%2B10%29=45%2Fr

4%2F%28r%2B10%29=3%2Fr

4r=3%28r%2B10%29

4r=3r%2B30

highlight%28r=30%29----------the speed for the second racer


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