document.write( "Question 210202: A staff member mixed a 35% solution with a 10% solution. How many liters of each will she need to mix in order to obtain 450 liters of a 20% solution? \n" ); document.write( "
Algebra.Com's Answer #158841 by stanbon(75887)\"\" \"About 
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A staff member mixed a 35% solution with a 10% solution. How many liters of each will she need to mix in order to obtain 450 liters of a 20% solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "0.35x + 0.10(450-x) = 0.20*450
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\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "35x + 10(450-x) = 20*450
\n" ); document.write( "35x + 10*450 - 10x = 20*450
\n" ); document.write( "25x = 10*450
\n" ); document.write( "x = 10*18
\n" ); document.write( "x = 180 liters (amt. of 35% solution needed in the mixture)
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\n" ); document.write( "450-180 = 270 liters (amt. of 10% solution needed in the mixture)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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