document.write( "Question 721557: A hospital needs 40L of 5% solution. They have 20% and 4%. How many Liters of each 20% and 4% would they need to mix to obtain the 40L of 5% solution? \n" ); document.write( "
Algebra.Com's Answer #442423 by nshah11(47)\"\" \"About 
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The total liters of each of the 20% and 4% solution must add up to 40.\r
\n" ); document.write( "\n" ); document.write( "(0.2(x) + 0.04(40-x))/40 = 0.05\r
\n" ); document.write( "\n" ); document.write( "0.15(x) + 1.6 = 2\r
\n" ); document.write( "\n" ); document.write( "x = 0.4/0.15 = 2.67 L of 20% solution.\r
\n" ); document.write( "\n" ); document.write( "37.33 L of 4% solution.
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