Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Riddle question again

  1. Mar 12, 2010 #1
    hello ..

    1. The problem statement, all variables and given/known data

    A company will manufacture a total of 5000 units of its product at plants A and B. At plan A the unit cost for labor and material combined is 2.50 $, while at plant B it is 3.00 $. The fixed costs at plant A are 6000 $ and at plant B they are 8000 $. Between the two plants the company has decided to allot no more than 28,000 $ for total costs. What is the minimum number of units that must be produced at plant A ?





    3. The attempt at a solution

    I want to confirm my steps if it's right ,,,,

    A = # units produced at plant A
    B = # units produced at plant B

    A + B = 5000
    B = 5000 - A

    Cost for plant A: 2.50A + 6000
    Cost for plant B: 3.00B + 8000

    (2.5A + 6000) + (3.0B + 8000) = 28000
     
  2. jcsd
  3. Mar 12, 2010 #2

    CEL

    User Avatar

    You already know that B = 5000 - A. Replace this value in the last equation.
     
  4. Mar 12, 2010 #3
    kk ,,,,

    i forgot to say it ,,, i
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook