Results 1 to 2 of 2

Math Help - Algebra Mixing Problem With Decimals - Solve for x

  1. #1
    Newbie
    Joined
    Apr 2009
    Posts
    15

    Algebra Mixing Problem With Decimals - Solve for x

    Here's the formula: p^1*x + p^2(a - x) = p^3 * a

    And here's the problem....

    Determine the number of quarts of a 10% soloution that must be mixed with a 30% solution to obtain 100 quarts of a 25% solution,

    (p^1 = 0.1, p^2 = 0.3, p^3 = 0.25, and a = 100.)

    I repeated get the wrong answer. I know that I'm supposed to multiply both sides by a multiple of 10 to remove the decimals but when I do it I get outrageously high numbers and the wrong answer.

    Any help would be greatly appreciated.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    May 2009
    Posts
    527
    I'm assuming that p^1, etc. are NOT exponents.

    I'm getting 25 quarts:

    .1x + .3(100-x) = .25(100)
    .1x + 30 - .3x = 25
    x + 300 - 3x = 250
    -2x = -50
    x = 25


    01
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] How to solve a linear programming question with "mixing
    Posted in the Algebra Forum
    Replies: 0
    Last Post: November 27th 2011, 06:01 AM
  2. A Mixing Problem....
    Posted in the Differential Equations Forum
    Replies: 4
    Last Post: January 27th 2011, 06:14 PM
  3. mixing problem
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: July 12th 2010, 11:31 PM
  4. Mixing Problem
    Posted in the Differential Equations Forum
    Replies: 3
    Last Post: February 23rd 2010, 02:18 AM
  5. Mixing problem
    Posted in the Calculus Forum
    Replies: 1
    Last Post: March 15th 2009, 02:08 PM

Search Tags


/mathhelpforum @mathhelpforum