Thursday

April 24, 2014

April 24, 2014

Posted by **david** on Sunday, November 4, 2012 at 8:31pm.

- maths -
**Steve**, Monday, November 5, 2012 at 1:45amAfter t seconds, we want

295+1.55*t/6 = 3(1280 - 1.55*t/6)

t = 3430.6

check:

after 3430.6 seconds, 886.2 gallons have drained

295+886.2 = 1181.2

1280-886.2 = 393.8

If the smaller tank were big enough to hold enough, after 3430.6 seconds it would hold 3 times the fluid of the larger tank.

However, it's too small, so we need to check to see when the larger tank has drained to 1145/3 gallons.

That occurs after 3477.4 seconds. It takes longer, because the small tank overflows, and the larger tank has to drain longer.

If the smaller tank is sealed, then it will never hold 3 times as much as the larger tank, because flow will stop too soon.

**Related Questions**

Math - Please HELP Tank A contains four times as much as Tank B. Tank C contains...

math - Tank 1 initial contains 70 L (liters) of water and 450 g of salt, while ...

maths - 1)a linear function is represented by f(x)=2x+7 which of the following ...

Math - A tank initially contains 50 liters of water. A hose adds water to the ...

math - An inverted square pyramid has a height equal to 8m and a top edge to 3m...

math - Water is Pumped into an underground tank at a constant rate of 8 gallons ...

Maths urgent help needed! - A rectangular tank measures 60cm by 40cm by 30cm. It...

maths - A rain water tank is half full. After it rained the tank if four fifths ...

physics - A sealed tank containing seawater to a height of 11.0 m also contains ...

Calculus - A tank contains 2920 L of pure water. A solution that contains 001 kg...