math

four people invested in a restaurant. one person invested $1000,000. two others invested in the ratio x:2x, and the fourth person invested an amount equal to the other three investors combined. the total investment was $1,100,000. A. write an expression for the amount invested by the fourth person. B. write an equation that allows you to find the amount invested by each person. C. How much did each person invest?

  1. 👍 0
  2. 👎 0
  3. 👁 550
asked by mc
  1. If the 4th person invested y, then
    1,000,000 + x + 2x + y = 1,100,000
    But y is as much as the other three together, so

    y+y = 1,100,000
    y = 550,000

    I'm sure you can now find the other answers.

    1. 👍 0
    2. 👎 0
    posted by Steve
  2. B. 100,000+x+2x+550,000=1,100,000
    3x=1,100,000-650,000
    3x=450,000
    x=450,000/3
    x=150,000

    c. 1. 100,000
    2. 150,000
    3. 300,000
    4. 550,000

    1. 👍 0
    2. 👎 0
    posted by mc

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