Results 1 to 4 of 4

Math Help - Solve for time, t

  1. #1
    Newbie
    Joined
    Nov 2009
    Posts
    2

    Solve for time, t

    Please help me solve this equation, for time t (exponent). I know you have to use natural log (ln) but I am unable to use the rules correctly.

    p = x + (y-x)(1-m)^t

    If it helps, y=.42 x=.12 m=.07 and p should be .12, but i would like to see the equation solved for time, t, with the variables given above.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Jun 2009
    From
    Africa
    Posts
    641

    Smile

    hi
    (1-m)^{t}=\frac{p-x}{y-x}\Rightarrow t=\log_{1-m}\left (\frac{p-x}{y-x}  \right )
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member
    Joined
    Jun 2009
    From
    Africa
    Posts
    641

    Smile

    u also have,
    t= \frac{\ln (\frac{p-x}{y-x})}{\ln (1-m)}
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Nov 2009
    Posts
    2
    Thank you both I really appreciate it!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Solve Bearing and Time for Trig problem using two right angles
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: October 25th 2010, 08:34 PM
  2. Constant acceleration: How do I solve time.
    Posted in the Math Topics Forum
    Replies: 6
    Last Post: September 18th 2010, 04:21 PM
  3. Solve time and distance??
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: September 18th 2010, 03:52 PM
  4. Solve for time
    Posted in the Algebra Forum
    Replies: 5
    Last Post: July 30th 2010, 01:19 AM
  5. Solve dP/dt = kP + N and find P as a function of time
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: June 2nd 2010, 09:00 AM

Search Tags


/mathhelpforum @mathhelpforum