document.write( "Question 246873: a beaker contains 15 milliliters of 20% alcohol solution. how many milliliters of a 60% alcohol solution should be added in order to make a 30% solution? \n" ); document.write( "
Algebra.Com's Answer #180212 by checkley77(12844)\"\" \"About 
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.20*15+.60x=.30(15+x)
\n" ); document.write( "3+.60x=4.5+.30x
\n" ); document.write( ".60x-.30x=4.5-3
\n" ); document.write( ".30x=1.5
\n" ); document.write( "x=1.5/.30
\n" ); document.write( "x=5 ml. of 60% alcohol is used.
\n" ); document.write( "Proof:
\n" ); document.write( ".20*15+.60*5=.3(15+5)
\n" ); document.write( "3+3=.3*20
\n" ); document.write( "6=6
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