SOLUTION: I have 2 questions I can't seem to figure out, and I can't find examples to apply in the text. The first is a word problem... "Barry paddles his boat to his campsite with a

Algebra ->  Proportions -> SOLUTION: I have 2 questions I can't seem to figure out, and I can't find examples to apply in the text. The first is a word problem... "Barry paddles his boat to his campsite with a       Log On


   

Question 187331This question is from textbook Introductory and Intermediate Algebra
: I have 2 questions I can't seem to figure out, and I can't find examples to apply in the text. The first is a word problem...
"Barry paddles his boat to his campsite with a 4 km/hr current: It takes him 3 hrs. On his way back to the same point agisnt the current, the trip takes him 7 hours. What is the speed of Barry's boat in still water?:,(and why should I care?) I have tried finding a formula containing a current, and I can't find one... This question is from textbook Introductory and Intermediate Algebra

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
With current:
d%5B1%5D+=+%28b+%2B+c%29%2At%5B1%5D
Against current:
d%5B2%5D+=+%28b+-+c%29%2At%5B2%5D
Math excercises are just pushups for the brain.
They can be about boats in water or alligators in mud
What good are pushups? Maybe no good at all.
You decide.