document.write( "Question 1146648: a pharmacist needs 80 liters of a 50% alcohol solution. she has available of a 20% and 80% alchol solution. how many liters of each solution should she mix to obtain 80 liters of a 50% alcohol soultion? \n" ); document.write( "
Algebra.Com's Answer #767924 by josgarithmetic(39618)\"\" \"About 
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\n" ); document.write( "... needs 80 liters of a 50% alcohol solution. she has available of a 20% and 80% alchol solution. how many liters of each solution should she mix to obtain 80 liters of a 50% alcohol soultion?
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\n" ); document.write( "\n" ); document.write( "v, liters volume of the 80%
\n" ); document.write( "M=80
\n" ); document.write( "M-v, liters volume of the 20%
\n" ); document.write( "T=50
\n" ); document.write( "H=80
\n" ); document.write( "L=20\r
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\n" ); document.write( "\n" ); document.write( "\"Hv%2BL%28M-v%29=TM\"--------solve for v.\r
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\n" ); document.write( "\n" ); document.write( "\"Hv%2BLM-Lv=TM\"\r
\n" ); document.write( "\n" ); document.write( "\"Hv-Lv=TM-LM\"\r
\n" ); document.write( "\n" ); document.write( "\"%28H-L%29v=M%28T-L%29\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28v=M%28%28T-L%29%2F%28H-L%29%29%29\"
\n" ); document.write( "Substitute given values and evaluate v and M-v.
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