Answered

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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SugoiOverloadviz
2(10%) + x(100%) = (2+x)(25%)

Multiply both sides by 100 to cancel out the % sign
2(10) + x(100) = (2+x)(25)
20 + 100x = 50 + 25x

Combine liek terms
75x = 30
x = 2/5 liters

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