document.write( "Question 1015692: 12 gal. of a saline solution was mixed with 3 gal. of a 30% saline solution to make a 38% saline solution. Find the percent concentration of the first solution. \n" ); document.write( "

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12 gal. of a saline solution was mixed with 3 gal. of a 30% saline solution to make a 38% saline solution. Find the percent concentration of the first solution.
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\n" ); document.write( "C = concentration of 12 gallons in %
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\n" ); document.write( "12*C + 3*30 = (12 + 3)*38
\n" ); document.write( "Solve for C\r
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