SOLUTION: A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the

Algebra ->  Real-numbers -> SOLUTION: A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the      Log On


   

Question 988144: A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the average speed on the level road if the entire trip was 188 miles.
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
                rate      time    distance
LEVEL           r+20      3       %28r%2B20%29%2A3
WINDING          r        4       %28r%29%284%29
total                             188