document.write( "Question 669505: Courtney wants to mix 30% alcohol with 70% alcohol to form 10 liters of 40% alcohol. How many liters of each should she use? \n" ); document.write( "
Algebra.Com's Answer #416411 by stanbon(75887)\"\" \"About 
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Courtney wants to mix 30% alcohol with 70% alcohol to form 10 liters of 40% alcohol. How many liters of each should she use?
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\n" ); document.write( "Equation:
\n" ); document.write( "alc + alc = alc
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\n" ); document.write( "0.30x + 0.70(10-x) = 0.40*10
\n" ); document.write( "30x + 70*10 - 70x = 40*10
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\n" ); document.write( "-40x = -30*10
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\n" ); document.write( "x = (3/4)10
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\n" ); document.write( "x = 7.5 liters (amt. of 30% solution needed)
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\n" ); document.write( "10-x = 2.5 liters (amt. of 70% solution needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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