...downstream.? What are the 2 linear equations, what is the speed of the boat in still water and what is the speed of the current.
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07-24-2008, 09:42 AM #1Junior Member
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A boat travels 24 miles upstream in 3 hours . It takes 3 hours to go 36 milies...
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07-24-2008, 09:47 AM #2Junior Member
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24=3(b-s)
36=3(b+s)
solve
b=10
x=2
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07-24-2008, 09:51 AM #3Junior Member
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X = boat speed
Y = river speed
X-Y = 24/3
X+Y = 36/3
from first equation
X = 8+Y
substitute into the second equation
8+Y+Y = 12
solve
Y = 2
X = 10
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