SOLUTION: The speed of a stream is 4 mph, if a boat travels 44 miles downstream in the same time that it takes to travel 22 miles, what is the speed of the boat in still water
Algebra.Com
Question 482248: The speed of a stream is 4 mph, if a boat travels 44 miles downstream in the same time that it takes to travel 22 miles, what is the speed of the boat in still water
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The speed of a stream is 4 mph, if a boat travels 44 miles downstream in the same time that it takes to travel 22 miles, what is the speed of the boat in still water
----
Downstream DATA:
dist = 44 miles; rate = b+4 mph ; time = 44/(b+4) hrs.
-------------------
Upstream DATA:
dist = 22 miles; rate = b-4 mph ; time = 22/(b-4) hrs
-------------------
Equation:
time up = time down
44/(b+4) = 22/(b-4)
2/(b+4) = 1/(b-4)
2(b-4) = b+4
2b-4 = b+4
b = 8 mph (speed of the boat in still water)
==========================
Cheers,
stan H.
==========================
RELATED QUESTIONS
The speed of a stream is 6 mph. If a boat travels 88 miles downstream in the same time... (answered by lwsshak3)
The speed of a stream is 6 mph. If a boat travels 74 miles downstream in the same to time (answered by stanbon)
the speed of a stream is 4 mph. if a boat travels 74 miles downstream in the same time... (answered by mananth)
The speed of a stream is 4 mph. If a boat travels 46 miles downstream in the same time... (answered by Alan3354)
The speed of a stream is 4 mph. If a boat travels 52 miles downstream in the same time... (answered by josmiceli)
The speed of a stream in 5 mph. If a boat travels 82 miles downstream in the same time... (answered by ankor@dixie-net.com)
The speed of a stream is 6 mph. If a boat travels 72 miles downstream in the same time... (answered by aaaaaaaa)
The speed of a stream is 6 mph. If a boat travels 98 miles downstream in the same time... (answered by ankor@dixie-net.com)
the speed of a stream is 5 mph. If a boat travels 66 miles downstream in the same time... (answered by mananth)