Results 1 to 3 of 3

Math Help - Easy D.e?

  1. #1
    Member
    Joined
    Oct 2008
    Posts
    77
    Thanks
    1

    Easy D.e?

    Water leaks from a tank through a hole at the base proportional to the square root of the volume of the water remaining. The tank has initially 400 liters and 23 liters leak out during the first day.

    When will the tank be half empty?

    Am i setting this equation up correctly? I think im being dumb..

    For V= volume in tank

    dV/dt=-sqrt(V)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Dec 2008
    From
    Scotland
    Posts
    901
    You must include a constant of proportionality. It says it is proportional, but it does not say what the proportion is.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Oct 2008
    Posts
    77
    Thanks
    1
    thanks... mind gap.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: February 9th 2013, 08:59 PM
  2. Easy Easy Trig help
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: November 27th 2009, 11:09 PM
  3. Seemingly easy question... too easy.
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: August 23rd 2009, 09:36 PM
  4. easy, easy question
    Posted in the Discrete Math Forum
    Replies: 3
    Last Post: July 14th 2009, 07:38 AM
  5. Easy probability that is not so easy for me!
    Posted in the Statistics Forum
    Replies: 1
    Last Post: May 9th 2009, 07:03 AM

Search Tags


/mathhelpforum @mathhelpforum