document.write( "Question 897601: A chemist must mix 12 L of a 30% acid solution with some 80% solution in order to get a 60% solution. How much of the 80% solution should be used? \n" ); document.write( "
Algebra.Com's Answer #544189 by lwsshak3(11628)\"\" \"About 
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A chemist must mix 12 L of a 30% acid solution with some 80% solution in order to get a 60% solution. How much of the 80% solution should be used?
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\n" ); document.write( "let x=amt of 80% solution should be use
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\n" ); document.write( "30%*12+80%x=60%(12+x)
\n" ); document.write( "3.6+.80x=7.2+.60x
\n" ); document.write( ".20x=3.6
\n" ); document.write( "x=18
\n" ); document.write( "amt of 80% solution should be use=18 L
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