document.write( "Question 750955: How much 13% saline solution should be added to 80 cc of 23% saline solution in order to have a 17% solution? \n" ); document.write( "

Algebra.Com's Answer #456910 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = cc's of 13% solution to be added
\n" ); document.write( " $\"+.13x+\"$ = cc's of salt in 13% solution
\n" ); document.write( " $\"+.23%2A80+=+18.4+\"$ cc's of salt in 23% solution
\n" ); document.write( "----------------
\n" ); document.write( " $\"+%28+.13x+%2B+18.4+%29+%2F+%28+x+%2B+80+%29+=+.17+\"$
\n" ); document.write( " $\"+.13x+%2B+18.4+=+.17%2A%28+x+%2B+80+%29+\"$
\n" ); document.write( " $\"+.13x+%2B+18.4+=+.17x+%2B+13.6+\"$
\n" ); document.write( " $\"+.04x+=+4.8+\"$
\n" ); document.write( " $\"+x+=+120+\"$
\n" ); document.write( "120 cc's of 13% solution need to be added
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+.13x+%2B+18.4+%29+%2F+%28+x+%2B+80+%29+=+.17+\"$
\n" ); document.write( " $\"+%28+.13%2A120+%2B+18.4+%29+%2F+%28+120+%2B+80+%29+=+.17+\"$
\n" ); document.write( " $\"+%28+15.6+%2B+18.4+%29+%2F+200+=+.17+\"$
\n" ); document.write( " $\"+34+=+.17%2A200+\"$
\n" ); document.write( " $\"+34+=+34+\"$
\n" ); document.write( "OK \n" ); document.write( "

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