document.write( "Question 1208408: A scientist is working with two different concentrations of hydrochloric acid (HCl). Bottle C is 80% HCl, and Bottle D is 30% HCl. For their experiment they need 1 liter of 60% HCl. The scientist needs to know the required number of liters of each solution to use.\r
\n" ); document.write( "\n" ); document.write( "Write a system of equations that could be used to solve this problem.\r
\n" ); document.write( "\n" ); document.write( "Algebraically solve your system of equations \r
\n" ); document.write( "\n" ); document.write( "How many liters of Bottle C do they need?\r
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Algebra.Com's Answer #846804 by timofer(105)\"\" \"About 
You can put this solution on YOUR website!
bottle c, 80% HCl
\n" ); document.write( "bottle d, 30% HCl
\n" ); document.write( "result to become mix to have 10 liter of 60% HCl
\n" ); document.write( "System of equations? This should be done in one if you see how.\r
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\n" ); document.write( "\n" ); document.write( "The pure HCl, \"0.8c%2B0.3d=1%2A0.6\" but factor 1 does not give anything more.
\n" ); document.write( "\"0.8c%2B0.3d=0.6\"
\n" ); document.write( "\"8c%2B3d=6\"\r
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\n" ); document.write( "\n" ); document.write( "Also c and d together must be 1 liter.
\n" ); document.write( "\"c%2Bd=1\"\r
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\n" ); document.write( "\n" ); document.write( "Good system for you:
\n" ); document.write( "\"system%288c%2B3d=6%2Cc%2Bd=1%29\"\r
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\n" ); document.write( "\n" ); document.write( "Work the rest from that.
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