Results 1 to 3 of 3

Math Help - Major Help on Word Problem!!!!

  1. #1
    Banned
    Joined
    Oct 2008
    Posts
    23

    Major Help on Word Problem!!!!

    Granny needs 3 gallons of 15% vinegar for
    her pickles. Bud went to the store and bought
    2 gallons of 50% vinegar. Granny asks:
    How much pure spring water must I mix with
    some of that 50% stuff to get my canner
    filled with 3 gallons of 15% solution?

    any help would be greatly appreciated...so much...
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by Sweetie View Post
    Granny needs 3 gallons of 15% vinegar for
    her pickles. Bud went to the store and bought
    2 gallons of 50% vinegar. Granny asks:
    How much pure spring water must I mix with
    some of that 50% stuff to get my canner
    filled with 3 gallons of 15% solution?

    any help would be greatly appreciated...so much...
    Let the number of gallons of water used be x, then 3-x gallons of 50% solution is used.

    Concentation of 3 gallons of mixture is the pure vinegar content of 3-x gallons of 50% solution divided by 3 gallons, and the pure vinegar content of (3-x) gallons of 50% mixture is (3-x) \times 0.50, so as the new solution is to be 15%:

    \frac{(3-x) \times 0.50}{3}=0.15

    RonL
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Banned
    Joined
    Oct 2008
    Posts
    23
    i got 2.1 gal ?

    Is that right?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: November 21st 2011, 06:16 AM
  2. hi i need major help!
    Posted in the Algebra Forum
    Replies: 1
    Last Post: November 18th 2009, 11:44 PM
  3. Major Math Help...
    Posted in the Algebra Forum
    Replies: 1
    Last Post: October 29th 2009, 04:27 PM
  4. Major Help
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: November 29th 2007, 05:18 AM
  5. I need major help :(
    Posted in the Algebra Forum
    Replies: 6
    Last Post: October 4th 2006, 05:37 PM

Search Tags


/mathhelpforum @mathhelpforum