document.write( "Question 469335: A chemist needs to strengthen a 30% solution with a 75% solution to obtain a 40% solution. how much of the 75% solution should be added to 280 milliliters of the 30% solution? \n" ); document.write( "

Algebra.Com's Answer #322014 by scott8148(6628) $\"\"$ $\"About$

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(280)(.30) + (x)(.75) = (280 + x)(.40) \n" ); document.write( "

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