document.write( "Question 310276: A chemist has 30 cc of a 12% solution of acid. He wishes to add enough water
\n" ); document.write( "to make a 4% solution of acid. How many cubic centimeters of water must be
\n" ); document.write( "added to the acid solution? \n" ); document.write( "
Algebra.Com's Answer #221943 by ankor@dixie-net.com(22740)\"\" \"About 
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A chemist has 30 cc of a 12% solution of acid.
\n" ); document.write( " He wishes to add enough water to make a 4% solution of acid.
\n" ); document.write( " How many cubic centimeters of water must be added to the acid solution?
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\n" ); document.write( "Let x = amt of water required
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\n" ); document.write( "Write an \"amt of acid equation\" the amts are equal, only the percentage changes
\n" ); document.write( ".12(30) = .04(x+30)
\n" ); document.write( "3.6 = .04x + 1.2
\n" ); document.write( "3.6 - 1.2 = .04x
\n" ); document.write( "2.4 = .04x
\n" ); document.write( "x = \"2.4%2F.04\"
\n" ); document.write( "x = 60 cc of water required
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\n" ); document.write( "Confirm the equality of the amt of acid
\n" ); document.write( ".12(30) = .04(60+30)
\n" ); document.write( "3.6 = .04(90)
\n" ); document.write( "3.6 = 3.6 \n" ); document.write( "
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