document.write( "Question 617422: How many milliliters of 70% alcohol can be made from 500 ml of 91% alcohol?
\n" ); document.write( "How much water will be needed for the previous problem?
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Algebra.Com's Answer #388320 by stanbon(75887)\"\" \"About 
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How many milliliters of 70% alcohol can be made from 500 ml of 91% alcohol?
\n" ); document.write( "How much water will be needed for the previous problem?
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\n" ); document.write( "water + water = water
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\n" ); document.write( "0.09*500 + x = 0.30(500+x)
\n" ); document.write( "9*500 + 100x = 30*500 + 30x
\n" ); document.write( "70x = 21*500
\n" ); document.write( "x = 3*50
\n" ); document.write( "x = 150 ml of water (amt. of water needed)
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
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