Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 2 variables

  1. Nov 4, 2007 #1
    From the facts that 1150 = P0exp(2 k) and 11500 = P0exp(8 k) we can solve for k and P0. Provide at least five decimal places of accuracy for k and at least two decimal places of accuracy for P0.

    I've got
    P0 = 1150/e^2k
    and
    P0 = 11500/e^8k

    but when i try to solve for any variable by substituting I keep ending up cancelling out all the variables
    help!

    thanks
     
  2. jcsd
  3. Nov 4, 2007 #2
    nvm i had crazy algebra
     
  4. Nov 5, 2007 #3

    HallsofIvy

    User Avatar
    Science Advisor

    Dividing one equation by the other eliminates P0.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook