Results 1 to 3 of 3

Math Help - Algebra Word Problem

  1. #1
    Newbie
    Joined
    Apr 2010
    Posts
    4

    Algebra Word Problem

    Q. After inheriting $30,000 from a rich aunt, David decides to place the money in three different investments:
    = a savings account paying 5%
    = a bond account paying 7%
    = a stock account paying 9%
    After 1 year, he earned $2080 in interest. Find how much was invested at each rate if $8000 less was invested at 9% than at 7%.


    Please explain how I can set up this mind boggling question for this mathematically challenged grasshopper. Thank you!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Nov 2007
    From
    Trumbull Ct
    Posts
    909
    Thanks
    27

    algebra word problem

    Quote Originally Posted by Sasurai View Post
    Q. After inheriting $30,000 from a rich aunt, David decides to place the money in three different investments:
    = a savings account paying 5%
    = a bond account paying 7%
    = a stock account paying 9%
    After 1 year, he earned $2080 in interest. Find how much was invested at each rate if $8000 less was invested at 9% than at 7%.


    Please explain how I can set up this mind boggling question for this mathematically challenged grasshopper. Thank you!

    Hi Sasuria,

    let x= investment @7%
    x-8000 = invest @9%
    30000 -( 2x -8000) =invest @5%

    calculate the interest for each invest in terms of x. add them and equate to 2080.It is not difficult but extremely easy to make mistakes with signs


    bjh
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Apr 2010
    Posts
    4
    Thank you sir!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Word Problem for Algebra.
    Posted in the Algebra Forum
    Replies: 25
    Last Post: August 24th 2009, 09:31 PM
  2. Algebra word problem
    Posted in the Algebra Forum
    Replies: 2
    Last Post: March 14th 2009, 02:54 PM
  3. algebra word problem
    Posted in the Algebra Forum
    Replies: 6
    Last Post: September 30th 2008, 06:26 AM
  4. Algebra word problem
    Posted in the Algebra Forum
    Replies: 3
    Last Post: April 6th 2008, 07:56 PM
  5. Help algebra word problem
    Posted in the Algebra Forum
    Replies: 1
    Last Post: January 14th 2007, 03:51 PM

Search Tags


/mathhelpforum @mathhelpforum