Results 1 to 2 of 2

Math Help - HELP me! I'm Stuck!

  1. #1
    Newbie
    Joined
    Dec 2005
    Posts
    7

    HELP me! I'm Stuck!

    Hi guys, I'm having a problem with one math question. Please help me out. Here's the questions

    "Mrs Lim buys 30 kg of cheese at a certain price. She finds that if she had bought some cheaper cheese costing 95 cents less per kg, she could have had 32.5 kg for the same amount of money. What is the price per kg of the cheese which is more expensive?"

    The answer to this however question is $12.35. But I don't know how this question is solved, I don't know how to form the equation. What is the proper equation?

    Thankyou!
    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 laser2302
    Hi guys, I'm having a problem with one math question. Please help me out. Here's the questions

    "Mrs Lim buys 30 kg of cheese at a certain price. She finds that if she had bought some cheaper cheese costing 95 cents less per kg, she could have had 32.5 kg for the same amount of money. What is the price per kg of the cheese which is more expensive?"

    The answer to this however question is $12.35. But I don't know how this question is solved, I don't know how to form the equation. What is the proper equation?

    Thankyou!
    Let p be the price of the cheese per kg in dollars. Then we
    know she spent:

    s= 30p dollars.

    The second cheese costs p-0.95 dollars per kg, so if she
    could have bought 32.5kg for the same as she spent on the other cheese
    we have:

    s=32.5 (p-0.95) dollars.

    Which leaves you with and equation for the price of the first cheese per kg:


    30p=32.5 (p-0.95).

    Which you have to solve.

    RonL
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Stuck
    Posted in the Algebra Forum
    Replies: 6
    Last Post: January 21st 2010, 11:09 AM
  2. stuck with sin^4(x)
    Posted in the Calculus Forum
    Replies: 1
    Last Post: March 24th 2009, 04:56 PM
  3. Stuck on a Log :(
    Posted in the Algebra Forum
    Replies: 9
    Last Post: January 21st 2008, 12:10 PM
  4. somebody help me plz im so stuck
    Posted in the Math Topics Forum
    Replies: 4
    Last Post: September 30th 2007, 11:43 AM
  5. Stuck, Stuck, Stuck - Need Help Urgently
    Posted in the Algebra Forum
    Replies: 3
    Last Post: May 17th 2005, 05:46 AM

Search Tags


/mathhelpforum @mathhelpforum