SOLUTION: Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?
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Question 304378: Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?
Found 2 solutions by mananth, richwmiller:
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?
pure fruit juice 100% let the quantity required be x
10% juice - 2 liters
Total 25% --x+2 liters
x+0.10*2 = 0.25(x+2)
x+0.2=0.25x+0.5
0.75x= 0.3
x= 0.3 / 0.75
=0.4 liters of 100% fruit juice
Ananth
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Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
2*.1+1*x=.25*(x+2)
x=.4 or 2/5 liter
check
2/10+4/10=2.4*1/4
6/10=6/10
ok
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