document.write( "Question 886466: In yoir chemistry class you need a 3% boric acid solution. How many milimeters of 5% acid solution should be added to 40 milimeters of 2% boric acid solution to obtain the desired solution? Give the equation(s) you used to solve the problem and withe the answer \n" ); document.write( "
Algebra.Com's Answer #535984 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
You may need to know the density of the 5% solution to do this right, and maybe need to know how the percent concentrations are expressed regarding mass/vol or mass/mass.\r
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\n" ); document.write( "\n" ); document.write( "An estimation can be made using these as a system:\r
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\n" ); document.write( "\n" ); document.write( "\"%282%2Au%2B5%2Av%29%2F40=3\" and \"u%2Bv=40\"\r
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\n" ); document.write( "\n" ); document.write( "u = volume of 2%
\n" ); document.write( "v = volume of 5%
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