document.write( "Question 738782: Glenn is a chemist with Gemco Pharmaceutical. He needs to prepare 40 gallons of a 15% hydrochloric acid solution find the amount of a 12% solution and the amount of a 20% solution he should mix to get this solution.\r
\n" ); document.write( "\n" ); document.write( "Again, i know how to solve a system of equations, but i dont know how to translate this problem, please help.
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Algebra.Com's Answer #450927 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Myself, I wouldn't go to all of the trouble to set up a system of equations for this one. I would do it this way:\r
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\n" ); document.write( "\n" ); document.write( "Then I would solve for and calculate .\r
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\n" ); document.write( "\n" ); document.write( "However, this is just two steps in to solving the following two-variable system by substitution:\r
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\n" ); document.write( "\n" ); document.write( "Note that I didn't need to use decimal fractions because the second equation and this one:\r
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\n" ); document.write( "\n" ); document.write( "are equivalent.\r
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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\"The

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