document.write( "Question 273788: A cough medicine contains 25% alcohol. How much liquid should a pharmacists add to 120 milliliters of the cough medicine so that it contains only 20% alcohol? \n" ); document.write( "
Algebra.Com's Answer #199964 by stanbon(75887)\"\" \"About 
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A cough medicine contains 25% alcohol. How much liquid should a pharmacists add to 120 milliliters of the cough medicine so that it contains only 20% alcohol?
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\n" ); document.write( "Equation:
\n" ); document.write( "alcohol + alcohol = alcohol
\n" ); document.write( "0.25*120 + 0*x = 0.20(120+x)
\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "25*120 + 0 = 20*120 + 20x
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\n" ); document.write( "20x = 5*120
\n" ); document.write( "x = 25 milliliters ( amt. of \"liquid\" that must be added to the mixture)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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