document.write( "Question 23839: A health clinic uses a solution of bleach to sterilize petri dishes in which cultures are grown. The sterilization tank contains 100 gal of a solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?
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Algebra.Com's Answer #12575 by Paul(988)\"\" \"About 
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0.02(100)+x=0.05(100+x)
\n" ); document.write( "2 + x = 5 + 0.05x
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\n" ); document.write( "\n" ); document.write( "-0.95x = -3
\n" ); document.write( "x = 3.16\r
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\n" ); document.write( "\n" ); document.write( "Hence, about 3.16 of solution\r
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