document.write( "Question 235297: A chemist has two solutions: one containing 40% alcohol and another containing 70% alcohol. How much of each should be used to obtain 80 liters of 49% solution. \n" ); document.write( "
Algebra.Com's Answer #173376 by nerdybill(7384)\"\" \"About 
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A chemist has two solutions: one containing 40% alcohol and another containing 70% alcohol. How much of each should be used to obtain 80 liters of 49% solution.
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\n" ); document.write( "Let x= liters of 40% alcohol
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\n" ); document.write( "80-x = liters of 70% alcohol
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\n" ); document.write( ".40x + .70(80-x) = .49(80)
\n" ); document.write( ".40x + 56 - .70x = 39.2
\n" ); document.write( "56 - .30x = 39.2
\n" ); document.write( "-.30x = -16.8
\n" ); document.write( "x = 56 liters of 40% alcohol
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\n" ); document.write( "70% alcohol:
\n" ); document.write( "80-x = 80-56 = 24 liters of 70% alcohol\r
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