Results 1 to 2 of 2

Math Help - Related Rates!

  1. #1
    Affinity
    Guest

    Smile Related Rates!

    Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 2p^3 + x^2 = 4500.
    Determine the rate at which sales are changing at a time when x = 50, p = 10, and the price is falling at the rate of $0.50 per week. (Thanks in advance!)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Eater of Worlds
    galactus's Avatar
    Joined
    Jul 2006
    From
    Chaneysville, PA
    Posts
    3,001
    Thanks
    1
    Differentiate your equation, sub in what you are given and find dx/dt.

    6p^{2}\frac{dp}{dt}+2x\frac{dx}{dt}=0
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Related Rates
    Posted in the Calculus Forum
    Replies: 1
    Last Post: October 26th 2009, 09:54 PM
  2. Rates and Related Rates!!
    Posted in the Calculus Forum
    Replies: 1
    Last Post: April 2nd 2008, 11:53 AM
  3. Another Related Rates
    Posted in the Calculus Forum
    Replies: 3
    Last Post: March 13th 2008, 07:32 AM
  4. Related Rates
    Posted in the Calculus Forum
    Replies: 6
    Last Post: March 12th 2008, 06:49 PM
  5. rates and related rates
    Posted in the Calculus Forum
    Replies: 2
    Last Post: October 29th 2007, 10:51 PM

Search Tags


/mathhelpforum @mathhelpforum