SOLUTION: With the current, a motorboat travels 60 miles in 3 hours, against the current it takes 2 hours longer to travel 60 Mi. Find the rate of the motorboat. Thank you!!!!

Question 385924: With the current, a motorboat travels 60 miles in 3 hours, against the current it takes 2 hours longer to travel 60 Mi. Find the rate of the motorboat.
Thank you!!!!
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
With the current, a motorboat travels 60 miles in 3 hours, against the current it takes 2 hours longer to travel 60 Mi. Find the rate of the motorboat.
...
boat rate = x mph
current rate hours
= y mph
..
upstream rate = x-y
downstream rate = x+y
..
t=d/r
..

60/(x-y)=5
60=5(x-y)
/5
12=x-y..................1
60/(x+y)=2
60=2(x+y)
/2
30=x+y..................2
...
add the two equations
2x=42
/2
x=21mph boat rate in still water
...
m.ananth@hotmail.ca

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