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document.write( "how many millilitres of vinegar must be added to 20 millilitres of a 10%-vinegar solution to make it a 25%-vinegar solution? \n" );
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Algebra.Com's Answer #513167 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! X+.10*20=.25(X+20) \n" ); document.write( "X+2=.25X+5 \n" ); document.write( "X-.25X=5-2 \n" ); document.write( ".75X=3 \n" ); document.write( "X=3/.75 \n" ); document.write( "X=4 ML. 0F PURE VINEGAR ARE REQUIRED. \n" ); document.write( "PROOF: \n" ); document.write( "4+.10*20=.25(4+20) \n" ); document.write( "4+2=.25*24 \n" ); document.write( "6=6 \n" ); document.write( " |