SOLUTION: A boat can go 72 miles downstream in 3 hours, and can make the return trip in 4 hours. Find the speed of the boat in still water.
Algebra.Com
Question 858150: A boat can go 72 miles downstream in 3 hours, and can make the return trip in 4 hours. Find the speed of the boat in still water.
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
up: (s+c)3=72,
down: (s-c)4=72
adding...
2s=72(1/3+1/4)
then...
s=21
boat speed: 21mph
RELATED QUESTIONS
A boat can travel 24 miles downstream in 2 hours and can make the return trip in 3 hours. (answered by ewatrrr)
Use two equations in two variables to solve the application.
A boat can travel 24... (answered by ikleyn)
A mississippi riverboat can travel 30km downstream in 3 hours and make the return trip in (answered by stanbon)
a boat on a river can go 4 miles downstream in 1/4 hour, but takes 1/2 hours to return to (answered by mananth)
a boat takes 3 hours to go 24 miles downstream, and 12 hours for the return trip. find... (answered by Alan3354)
A Mississippi riverboat can travel 40 kilometers downstream in 3 hours and can make the... (answered by scott8148)
A Mississippi riverboat can travel 60 kilometers downstream in 3 hours and can make the... (answered by checkley79)
a boat traveled 72 miles downstream and back. The trip downstream took 3 hours. The trip... (answered by ankor@dixie-net.com)
A boat traveled 72 miles downstream and back. The trip downstream took 3 hours. The trip... (answered by mananth)