document.write( "Question 385555: A lab technician is required to prepare 200 liters of a fungicide. The prepared solution must contain 42% fungicide. The lab technician wishes to use a solution that contains 30% fungicide with a solution that contains 50% fungicide. How much of each solution should he use.\r
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Algebra.Com's Answer #272770 by stanbon(75887)\"\" \"About 
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A lab technician is required to prepare 200 liters of a fungicide. The prepared solution must contain 42% fungicide. The lab technician wishes to use a solution that contains 30% fungicide with a solution that contains 50% fungicide. How much of each solution should he use.
\n" ); document.write( "Equation:
\n" ); document.write( "fungi + fungi = fungi
\n" ); document.write( "0.50x + 0.30(200-x) = 0.42*200
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\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "50x + 30*200 - 30x = 42*200
\n" ); document.write( "20x = 12*200
\n" ); document.write( "x = 120 liters (amt. of 50% solution needed in the mixture)
\n" ); document.write( "200-x = 80 liters (amt. of 30% solution needed in the mixture)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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