SOLUTION: A salmon can go 40 feet downstream on a river in 2 seconds. It takes 8 seconds for the this salmon to go back upstream the same 40 feet. Find the speed of the current.
Algebra.Com
Question 931612: A salmon can go 40 feet downstream on a river in 2 seconds. It takes 8 seconds for the this salmon to go back upstream the same 40 feet. Find the speed of the current.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
r+ c = 20fps 40ft/2sec
r- c = 5ftps 40ft/(8sec)
2r = 25
r = 12.5
c = 7.5fps
Re TY
(in the above had both ft and sec to deal with converting to mph)
as (as 1*3600 = 1 hr)
c = 7.5(3600)ft/hr) AND = mph
.......
8 miles on a river in 20 minutes
(as 20*3 = 60min)
Yes. 8*3= 24mph
Good Work.
RELATED QUESTIONS
A motorboat can go 8 miles downstream on a river in 10 minutes. It takes 30 minutes for... (answered by scott8148)
A motorboat can go 8 miles downstream on a river in 10 minutes. It takes 30 minutes for... (answered by scott8148)
A motorboat can go 8 miles downstream on a river in 20 minutes. It takes 30 minutes for... (answered by checkley77)
Please help me solve this problem:
A motorboat can go 14 miles downstream on a river... (answered by mananth)
A motorboat can go 48 miles downstream on a river in 1 hour. It takes 1.5 hours for this... (answered by ewatrrr)
A motorboat can go 12 miles downstream on a river in 20 minutes. It takes 30 minutes for... (answered by stanbon)
A motorboat can go 16 miles downstream on a river in 20 minutes. It takes 30 minutes for... (answered by josmiceli)
A motorboat can go 14 miles downstream on a river in 20 minutes. It takes 30 minutes for... (answered by checkley77)
A motorboat can go 10 miles downstream on a river in 20 min. Its takes 30 min.for this... (answered by ankor@dixie-net.com)