document.write( "Question 1124917: Jamal needs to create a nitric acid solution which is less than 15% nitric acid. He begins with 12 fluid ounces of a 20% nitric acid solution in water and he adds 8 fluid ounces of water. Does he need to add more water? \n" ); document.write( "
Algebra.Com's Answer #741213 by josgarithmetic(39617)\"\" \"About 
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The addition must be to add acid TO water; not the other way around. SAFETY!\r
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\n" ); document.write( "\n" ); document.write( "This is only approximate. Density information may be necessary depending on how the concentration information is intended:\r
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\n" ); document.write( "\n" ); document.write( "\"12%2A0.20%2F%28x%2B12%29=0.15\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"0.2%2A12=0.15x%2B0.15%2A12\"\r
\n" ); document.write( "\n" ); document.write( "\"0.2%2A12-0.15%2A12=0.15x\"\r
\n" ); document.write( "\n" ); document.write( "\"0.05%2A12=0.15x\"\r
\n" ); document.write( "\n" ); document.write( "\"x=4\"
\n" ); document.write( "Just a guess, about 4 fluid ounces of water would be necessary; probably not need
\n" ); document.write( " 8 fluid ounces.
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