SOLUTION: Shirley walked a certain distance, then returned along the same route. She walked 10km/h going and returned at 8km/h. How far did she walk if the round trip took 9h?

Algebra ->  Expressions-with-variables -> SOLUTION: Shirley walked a certain distance, then returned along the same route. She walked 10km/h going and returned at 8km/h. How far did she walk if the round trip took 9h?      Log On


   

Question 1023824: Shirley walked a certain distance, then returned along the same route. She walked 10km/h going and returned at 8km/h. How far did she walk if the round trip took 9h?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
d= distance walked (one way), in km
d%2F10= time (in hours) spent going at 10%22km+%2F+h%22
d%2F8= time (in hours) spent returning at 8%22km+%2F+h%22
4d%2F40%2B5d%2F40=9
9d%2F40=9
%289%2F40%29%2Ad=9
%2840%2F9%29%2A%289%2F40%29%2Ad=%2840%2F9%29%2A9
highlight%28d=40%29
Shirley walked 40 km each way.