document.write( "Question 1031141: I'm having problems doing this word problem. Somebody help! Here it is:
\n" ); document.write( "A pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100ml of a 12% saline solution. How much of the 10% saline solution did the pharmacist use in the mixture?
\n" ); document.write( "Now, here is my work that i did. I made a 3 variable equation and something seems to not work there. Could you please show me what i did wrong or come up with a new way to approach the problem?
\n" ); document.write( "x+y=z
\n" ); document.write( "10x+15y= 100(12z)
\n" ); document.write( "Thanks a ton! \n" ); document.write( "

Algebra.Com's Answer #645863 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "I'm having problems doing this word problem. Somebody help! Here it is:
\n" ); document.write( "A pharmacist mixed some 10% saline solution
\n" ); document.write( "with some 15% saline solution to obtain 100ml of a 12% saline solution. How much of the 10% saline solution did the pharmacist use in the mixture?\r
\n" ); document.write( "\n" ); document.write( "Now, here is my work that i did. I made a 3 variable equation and something seems to not work there. Could you please show me what i did wrong or come up with a new way to approach the problem?
\n" ); document.write( "x+y=z
\n" ); document.write( "10x+15y= 100(12z)
\n" ); document.write( "Thanks a ton!
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "Your equations are (or should be)\r\n" );
document.write( "\r\n" );
document.write( "  x +   y = 100,      (1)\r\n" );
document.write( "10x + 15y = 12*100.   (2)\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "NO THREE EQUATIONS !   NO THREE UNKNOWNS !   Only two. \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Could you complete the solution from this point?\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "There are many similar solved problems in this site that you can use as samples.\r\n" );
document.write( "See the lesson  Solving typical word problems on mixtures for solutions  in this site.\r\n" );
document.write( "

\n" ); document.write( " \n" ); document.write( "

\n" );