document.write( "Question 171636: A physician having 100 cubic centimeters of a 6% solution of a certain medicine wishes to dilute it to a 3 1/2 % solution. How much water must he add? (A 6% solution contains 6% of medicine and 94% of water.) \n" ); document.write( "
Algebra.Com's Answer #126779 by nerdybill(7384)\"\" \"About 
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Let x = amount of water added
\n" ); document.write( ".06(100) = .035(100+x)
\n" ); document.write( "6 = 3.5 + .035x
\n" ); document.write( "2.5 = .035x
\n" ); document.write( "71.429 cc = x\r
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