document.write( "Question 306189: 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? \n" ); document.write( "

Algebra.Com's Answer #219198 by Fombitz(32388) $\"\"$ $\"About$

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Let A be the number of liters of 100% fruit juice.
\n" ); document.write( "Write the concentration equation.
\n" ); document.write( " $\"100A%2B10%282%29=25%28A%2B2%29\"$
\n" ); document.write( " $\"100A%2B20=25A%2B50\"$
\n" ); document.write( " $\"75A=30\"$
\n" ); document.write( " $\"A=30%2F75\"$
\n" ); document.write( " $\"A=2%2F5\"$
\n" ); document.write( "2/5 of a liter (400 ml) of 100% fruit juice. \n" ); document.write( "

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