Posted by **Amber** on Monday, January 14, 2008 at 11:03pm.

on a canoe trip, Rita paddled upstream (against the current) at an average speed of 2 mi/hr relative to the riverbank. on the return trip downstream (with the current), her average speed was 3 mi/hr. find rita's paddling speed in still water and the speed of the river's current.

dealing w/- substitution and elimination

- Algebra -
**bobpursley**, Tuesday, January 15, 2008 at 12:05am
let w be the water speed

let b be the boat speed in still water.

b-w=2

b+w=3

solve. I would add the two equations to eliminate w.

- Algebra -
**Navi**, Thursday, July 28, 2011 at 6:46am
b-w=2

b+w=3 (transpose)

b=3-w (substitute)

3-w-w=2 (combine like terms)

-2w=-1 (cancel -2)

w= 1/2

## Answer This Question

## Related Questions

- Algebra - When Neil was 2 miles upstream from camp on a canoe trip, he passed a ...
- UPSTREAM - THIS EXURSION WITH A BOAT TRAVEL 35KM UPSTREAM AND THEN BACK AGAIN IN...
- Math - Dayle is paddling his canoe upstream, against the current, to a fishing ...
- Help...More Math Help!!!...Please! - A kayaker paddled 2 hours with a 6 mph ...
- Physics - 16. A Nile cruise ship takes 21. 0 h to go upstream from Luxor to ...
- Algebra - Cody’s motorboat took 3 hr to make a trip downstream with a 6-mph ...
- algebra - tugboat goes 160 miles upstream in 10 hours. The return trip ...
- word problem - A motor boat took 4 hours to make a downstream trip with a ...
- Algebra - 5.) A boat makes a trip downstream in 5 hours. The return trip against...
- Algebra 2 - 5.) A boat makes a trip downstream in 5 hours. The return trip ...

More Related Questions