Posted by **CINDY** on Thursday, December 21, 2006 at 2:21am.

THIS EXURSION WITH A BOAT TRAVEL 35KM UPSTREAM AND THEN BACK AGAIN IN 4 H 48 MINUTRE. iF THE SPEED OF THE BOAT I5 K,/H, WHAT IS THE SPEED OF THE CURRENT?

Let v be the speed of the current. The boat's speed upstream (relative to the land) is 15-v and the speed downstream is 15+v. The total trip time is

35/(15-v) + 35/(15 + v) = 4.8 (hours)

Solve for the single unknown, v.

- UPSTREAM -
**Anonymous**, Saturday, September 17, 2011 at 4:16pm
900

## Answer this Question

## Related Questions

- Maths - A river flows at 3km/h. At what speed must a boat travel in order to ...
- math - A boat travels 8km upstream and back in 2 hours. If the current flows at ...
- word problem - 2. The excursion boat Holiday travels 35km upstream and then back...
- Algebra 2 - A boat travels 60 km upstream and back again in 8 hours. If the ...
- algebra-NOW PLEASE - A boat is traveling in a river with a current that has a ...
- physics - A boat’s speed in still water is vBW = 1.85 m/s. If the boat is to ...
- Physics - A boat must cross a 260-m-wide river and arrive at a point 110 ...
- Math! Algebra 1! - A boat is traveling in a river with a current that has a ...
- math - A boat takes 90 minutes less to travel 36 km downstream then to travel ...
- Algebra - A riverboat cruise line has a boat that can travel 76 mi downstream in...

More Related Questions