# Yahoo Web Search

1. ### It takes a boat 2 hrs to travel 16 miles down stream. The same boat takes 4 hrs for the return trip.?

v = speed of the boat c = speed ot the water (current) (v+c)*2 = 16 => v+c = 8 (v-c)*4 = 16 => v-c = 4 ------------- 2c = 8-4 = 4 c = 2 answer : speed of the water = 2mph

4 Answers · Education & Reference · 05/05/2012

2. ### A boat takes 3.1 hrs. to travel 20 km down a river, then 7 hrs. to return. How fast is the river flowing?

... downstream is b + c the resultant speed of the boat when traveling upstreams is b - c...3.1 b = 20/3.1 - c (20/3.1 - c - c)7 = 20 20/3.1 - 2c = 20/7 - 2c = -780/217 c = 390/217 km/hr or about 1.797km/hr...

5 Answers · Science & Mathematics · 16/06/2007

3. ### calculus.. suppose to boats leave the dock at the same time....?

...^2 find the derivative with respect to time 2A(da/dt)+2B(db/dt)= 2C (dc/dt) twos cancel A(da/dt)+B(db/dt)=C(dc/dt) plug...

2 Answers · Science & Mathematics · 19/03/2010

4. ### Are there any deep sea lure fishing boats that you can charter in southern California?

...gt; < http://search.yahoo.com/search?p=Southern+CA.% 2C +fishing+ boat +charters&fr=ush-ans Note: Each site will...

6 Answers · Sports · 29/03/2008

5. ### can someone tell me what is this boat (make/model)?

...!) See: http://sierraboat.com/ boats /2003-stan-craft-torpedo/ See also: http://en.wikipedia..._Performance_Marine. 2C _LLC. And (Stan-Craft...

4 Answers · Cars & Transportation · 09/03/2014

6. ### types of boats for new york.?

...com/index.php#mvt=m&lat=42.744562&lon=-76.790785&zoom=11&q1=New%20York% 2C %20NY%2010007 Be water safe enjoy, also follow all rules and...

2 Answers · Sports · 24/08/2008

7. ### Position of Boat A and Boat B. Partial Derivative Problem?

...10 + 10*10 = 70 ft c ≈ 122 ft by pythagoras now c² = a² + b² 2c dc/dt = 2a da/dt + 2b db/dt c dc/dt = a da/dt + b db/dt ........... [ I...

1 Answers · Science & Mathematics · 18/02/2013

8. ### I am looking for a private party that rents their boat on Lake Havasu, AZ?

1 Answers · Cars & Transportation · 01/01/2011

9. ### A boat can move at a speed of 10 km/h in still water, the boat is paddled 4 km downstream in a river?

4(10-C) = 2(10+C) 40 - 4C = 20 + 2C -6C = -20 so the current is 3 1/3 Km/hr.

2 Answers · Science & Mathematics · 20/04/2013

10. ### Straight of Juan De Fuca Boating ?

...command=view&location=Strait+of+Juan+de+Fuca+Entrance% 2C +Washington+Current butchart gardens anchorages...

1 Answers · Cars & Transportation · 14/06/2010