document.write( "Question 1017265: Joan mixed 11 mL of an acidic solution with 8 mL of a 42% acidic solution, to make a 43% acidic solution. Find the percent acid concentration of the first solution. \n" ); document.write( "

Algebra.Com's Answer #633602 by josgarithmetic(39618) $\"\"$ $\"About$

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c, the concentration of the first solution to be used\r
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\n" ); document.write( "\n" ); document.write( " $\"%288%2A42%2B11%2Ac%29%2F%288%2B11%29=43\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"8%2A42%2B11c=19%2A43\"$
\n" ); document.write( " $\"11c=19%2A43-8%2A42\"$
\n" ); document.write( " $\"c=%2819%2A43-8%2A42%29%2F11\"$ \n" ); document.write( "

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