document.write( "Question 114741: A nurse wants to add water to 30 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add? \n" ); document.write( "
Algebra.Com's Answer #83575 by ankor@dixie-net.com(22740)\"\" \"About 
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A nurse wants to add water to 30 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add?
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\n" ); document.write( "Let x = amt of water required
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\n" ); document.write( ".10(30) = .08(x+30)
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\n" ); document.write( "3 = .08x + 2.4
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\n" ); document.write( ".08x = 3 - 2.4
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\n" ); document.write( ".08x = .6
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\n" ); document.write( "x = .6/.08
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\n" ); document.write( "x = 7.5 oz of water required
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\n" ); document.write( "Check answer to see if the amt of \"that stuff\", is the same in both solutions
\n" ); document.write( ".1(30) = .08(30 + 7.5)
\n" ); document.write( ".1(30) = .08(37.5)
\n" ); document.write( " 3 = 3 \n" ); document.write( "
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