document.write( "Question 193338: PROBLEM:
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document.write( "A chemist needs 900 millileters of a 40% acid solution for a chemistry experiments. The chemist combines x milliliters of a 20% acid solution and y milliliters of a 70% acid solution to make 40% acid solution.
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document.write( "a. write a linear system that repesents the situation \n" );
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Algebra.Com's Answer #145134 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! let x be the amount of 20% solution and y be the amount of 70% solution \n" ); document.write( ": \n" ); document.write( "x+y=900...........eq 1 \n" ); document.write( ".2x+.7y=.4(900)...eq 2 \n" ); document.write( " |