document.write( "Question 163319: Have radiator that holds 16 quarts antifreeze. Currently has 16 quarts antifreeze 25% solution. How much antifreeze should we take out and then add back in to make a 40% solution of 16 quarts? \n" ); document.write( "
Algebra.Com's Answer #120393 by scott8148(6628)\"\" \"About 
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let x=\"amount to be replaced\"\r
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\n" ); document.write( "\n" ); document.write( "(16-x)(25%)+(x)(100%)=(16)(40%) __ 4-.25x+x=6.4 __ .75x=2.4 __ x=3.2
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