document.write( "Question 130791: Arianne is mixing a solution for Chemistry class. She has a 25% copper solution and a 50% copper solution. How much of each should she mix to max 1000ml of a 45% solution \n" ); document.write( "

Algebra.Com's Answer #95492 by checkley71(8403) $\"\"$ $\"About$

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.5X+.25(1000-X)=.45*1000
\n" ); document.write( ".5X+250-.25X=450
\n" ); document.write( ".25X=450-250
\n" ); document.write( ".25X=200
\n" ); document.write( "X=200/.25
\n" ); document.write( "X=800 ML OF 50% COPPER SOLUTION.
\n" ); document.write( "1000-800=200 ML OF 25% COPPER SOLUTION.
\n" ); document.write( "PROOF:
\n" ); document.write( ".5*800+.25*200=450
\n" ); document.write( "400+50=450
\n" ); document.write( "450=450 \n" ); document.write( "

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