SOLUTION: Alexander and Judy are 32 miles apart on a calm lake paddling toward each other. Alexander paddles at 4 miles per hour, while judy paddles at 7 miles per hour. How long will it tak
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-> SOLUTION: Alexander and Judy are 32 miles apart on a calm lake paddling toward each other. Alexander paddles at 4 miles per hour, while judy paddles at 7 miles per hour. How long will it tak
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Question 162311: Alexander and Judy are 32 miles apart on a calm lake paddling toward each other. Alexander paddles at 4 miles per hour, while judy paddles at 7 miles per hour. How long will it take them to meet? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Alexander and Judy are 32 miles apart on a calm lake paddling toward each other.
Alexander paddles at 4 miles per hour, while judy paddles at 7 miles per hour.
How long will it take them to meet?
:
Let t = their paddling time
:
When they meet, their travel distances will add up to 32: Dist = speed * time
:
4t + 7t = 32
;
11t = 32
t = 32/11
t = 2.91 hrs or about 2 hrs 54.6 minutes
:
:
Check the solution by finding the distance of each:
2.91*4 = 11.64
2.91*7 = 20.37
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total = 32.01 ~ 32
