document.write( "Question 989096: 2 ml of an acid solution was mixed with 3 ml of a 85% acid solution to make a 79% acid solution. Find the percent concentration of the first solution. \n" ); document.write( "

Algebra.Com's Answer #609521 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = % concentration of the 1st solution
\n" ); document.write( " $\"+2x+\"$ = ml of acid in 1st solution
\n" ); document.write( " $\"+.85%2A3+\"$ = ml of acid in 2nd solution
\n" ); document.write( "-----------------------------------
\n" ); document.write( " $\"+%28+2x+%2B+.85%2A3+%29+%2F+%28+2+%2B+3+%29+=+.79+\"$
\n" ); document.write( " $\"+2x+%2B+.85%2A3+=+.79%2A5+\"$
\n" ); document.write( " $\"+2x+=+.79%2A5+-+.85%2A3+\"$
\n" ); document.write( "Solve for $\"+x+\"$
\n" ); document.write( "( I misplaced my calculator )
\n" ); document.write( " \n" ); document.write( "

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