document.write( "Question 990543: 23% solution is added to 17% solution to get 45 gallons of 20% solution. How much of each should be added? \n" ); document.write( "
Algebra.Com's Answer #610539 by Boreal(15235)\"\" \"About 
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x=23% solution
\n" ); document.write( "45-x=17% solution
\n" ); document.write( ".23x+ 0.17(45-x)=45*0.20=9
\n" ); document.write( ".23x + 7.65-0.17x=9
\n" ); document.write( "0.06x=1.35
\n" ); document.write( "x=22.5 gal of 23%
\n" ); document.write( "45-x=22.5 gal
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\n" ); document.write( "Faster way.
\n" ); document.write( "If you mix them 1:1 you get 20%, so it will be half of 45 for each.
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