SOLUTION: Stefan left school and traveled toward his
friend's house. Eugene left two hours later
traveling at 40 km/h in an effort to catch up
to Stefan. After traveling for three hours
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-> SOLUTION: Stefan left school and traveled toward his
friend's house. Eugene left two hours later
traveling at 40 km/h in an effort to catch up
to Stefan. After traveling for three hours
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Question 313698: Stefan left school and traveled toward his
friend's house. Eugene left two hours later
traveling at 40 km/h in an effort to catch up
to Stefan. After traveling for three hours
Eugene finally caught up. What was
Stefan's average speed? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Stefan left school and traveled toward his
friend's house. Eugene left two hours later
traveling at 40 km/h in an effort to catch up
to Stefan. After traveling for three hours
Eugene finally caught up. What was
Stefan's average speed?
:
Let s = S's speed
:
When E catches S, they will have traveled the same distance
S's travel time = 5 hrs
E's travel time = 3 hrs
:
Write a distance equation: dist = time * speed
:
S's dist = E's dist
5s = 3(40)
5s = 120
s =
s = 24 km/hr is S's speed
:
:
Check solution by finding S's distance, should be 120 km also
5(24) = 120
