document.write( "Question 202366: A chemist mixes a 20% solution and a 50% solution to obtain a 40% solution. If 300g of solution was obtained, how much of each type of the original solutions were used?\r
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Algebra.Com's Answer #152684 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
let x=20% mix
\n" ); document.write( "let 300-x=50% mix
\n" ); document.write( ".2x+.5(300-x)=.4(300)
\n" ); document.write( ".2x+150-.5x=120
\n" ); document.write( "-.3x=-30
\n" ); document.write( "x=100 gal
\n" ); document.write( "300-x=200 gal
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