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?

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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)   (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

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