SOLUTION: Aya rode her bicycle from her house to a friend's house, averaging 16 kilometers per hour. It turned dark before she ready to return home, so her friend drove her home at a rate of
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Question 750379: Aya rode her bicycle from her house to a friend's house, averaging 16 kilometers per hour. It turned dark before she ready to return home, so her friend drove her home at a rate of 80 kilometers per hour. If Aya's total traveling time was 3 hours, how far away did her friend live? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Aya rode her bicycle from her house to a friend's house, averaging 16 kilometers per hour.
It turned dark before she ready to return home, so her friend drove her home at a rate of 80 kilometers per hour.
If Aya's total traveling time was 3 hours, how far away did her friend live?
:
let d = one way distance to friend's house
:
Write a time equation: time = dist/speed
:
bike time + ride time = 3 hrs + = 3
multiply by 80 to clear the denominators
5d + d = 80(3)
6d = 240
d = 240/6
d = 40 mi to fr house
:
:
Confirm this by finding the total of the time each way
40/16 = 2.5 hrs
40/80 = .5 hrs
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total: 3 hrs
