document.write( "Question 970057: Hi math enthusiasts,
\n" ); document.write( "I have been trying to work this linear system word problem and just cannot figure it out. I must be missing something! Please help! \r
\n" ); document.write( "\n" ); document.write( " In your chemistry class you have a bottle of 5% boric acid solution and a bottle of 2% boric acid solution. You need 60ml of a 3% boric acid solution for an experiment. How much of each solution do you need to mix together?\r
\n" ); document.write( "\n" ); document.write( "I tried to work it like this:\r
\n" ); document.write( "\n" ); document.write( "X=5
\n" ); document.write( "Y=2
\n" ); document.write( "X+Y=60
\n" ); document.write( "y= -x+60
\n" ); document.write( "5x+2y=3
\n" ); document.write( "I got this for the solutions:
\n" ); document.write( "X= -20, Y=80
\n" ); document.write( "Since x is negative, I know this is not correct. Please show me how to set this up. Thank you \n" ); document.write( "
Algebra.Com's Answer #592729 by AnlytcPhil(1806)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Your equation\r\n" );
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document.write( "5x+2y=3  is wrong.\r\n" );
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document.write( "It came from\r\n" );
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document.write( "0.05x+0.2y=0.03  <-- that says (% acid) + (% acid) = %\r\n" );
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document.write( "When you add acid to acid you get acid, not \"percent\"!\r\n" );
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document.write( "is wrong\r\n" );
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document.write( "It should be\r\n" );
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document.write( "5x+2y=18\r\n" );
document.write( "which comes from:    \r\n" );
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document.write( "0.05x+0.02y=.03(60)\r\n" );
document.write( "0.05x+0.02y=1.8  \r\n" );
document.write( "      5x+2y=18\r\n" );
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document.write( "Now you can finish.\r\n" );
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document.write( "Edwin
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