SOLUTION: A 10lb bag of mixed nuts contains 20% peanuts. How many pounds of peanuts should be added to change the mixture to 80% peanuts?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A 10lb bag of mixed nuts contains 20% peanuts. How many pounds of peanuts should be added to change the mixture to 80% peanuts?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 675103: A 10lb bag of mixed nuts contains 20% peanuts. How many pounds of peanuts should be added to change the mixture to 80% peanuts?
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
2+x=.8(10+x)
2+x==8+.8x
.2x=8-2
.2x=6
x=30
you will need 30 peanuts