SOLUTION: Please help me solve this equation: Alvin paddled for 2 hours with a 5-km/hr current to reach a campsite. The return trip against the same current took 7 hours.
Find the spee
Algebra.Com
Question 622515: Please help me solve this equation: Alvin paddled for 2 hours with a 5-km/hr current to reach a campsite. The return trip against the same current took 7 hours.
Find the speed of the boat in still water.
What is the speed of the boat in still water? ___ km/hr.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Distance equals rate times time, so )
and )
. But 
so:
\ =\ 2(r\ +\ 5))
Solve for 
By the way, tell your teacher that if s/he is going to make up problems, construct them so that the answers make sense in the real world. Alvin's sustained paddling speed approximates the speed of the world canoe record holder for a 5000 meter race and is only slightly slower than the record for the kayak at the same distance. The distance here is NINE times as far. No human can paddle that fast for that far.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
Alvin paddled for 2 hours with a 6-km/h current to reach a campsite. The return trip... (answered by richard1234)
Alvin paddled for 5 hours with a 5 km/hour current to reach a campsite. The return trip... (answered by lwsshak3)
Can anyone help me set this up and solve? I am having some trouble with this conceot.... (answered by ikleyn)
Can someone please help me figure this out? Thank you.
Alvin paddled for 5 hours with (answered by ikleyn)
alvin paddled for 2 hours with a 5-km/h current to reach a campsite. the return trip... (answered by jorel1380)
Alvin paddled for 5 hours with a 2-km/h current to reach a campsite. The return trip... (answered by mananth)
Alvin paddled for 5 hours with a 3-km/h current to reach a campsite. The return... (answered by Theo)
Alvin paddled for 3 hours with a 5-km/h current to reach a campsite. The return... (answered by josmiceli)
11. Alvin paddled for 2 hours with a 6-km/h current to reach a campsite. The return trip... (answered by mananth)
