document.write( "Question 306011: How many liter of a 10% solution and how many liters of a 20% solution must be mixed to obtain 20 liters of a 17.5% solution? \n" ); document.write( "
Algebra.Com's Answer #219079 by richwmiller(17219)\"\" \"About 
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x+y=20
\n" ); document.write( ".1x+.2y=20*.175
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