SOLUTION: On her camping trip Li spent as much time hiking as she did rafting. She traveled 2.5 mph when she was rafting and 3mph when she was hiking. If she went 3 miles more hiking than sh

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Question 280471: On her camping trip Li spent as much time hiking as she did rafting. She traveled 2.5 mph when she was rafting and 3mph when she was hiking. If she went 3 miles more hiking than she did rafting, how far did she hike? Thank you.
Found 2 solutions by josmiceli, scott8148:
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let her time for hiking in hours =
and also her time for rafting =
Let distance hiking in miles =
Let distance rafting in miles =
-----------------------------------
given:



---------------------
By substitution:


By substitution again:



And, since



She hiked 18 miles

Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
hiking and rafting times are the same

time equals distance divided by rate

(x - 3) / 2.5 = x / 3

3x - 9 = 2.5x ___ x = 18

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