document.write( "Question 753913: A physicist needs 80 liters of a 30% acid solution. He has a 20% acid solution and a 60% acid solution. How many liters of each 20% and 60% does he need to total 80 liters of a 30% acid solution? \n" ); document.write( "
Algebra.Com's Answer #458682 by josgarithmetic(39617)\"\" \"About 
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A physicist needs M liters of a T% acid solution. He has a L% acid solution and a H% acid solution. How many liters of each L% and H% does he need to total M liters of a T% acid solution?\r
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\n" ); document.write( "\n" ); document.write( "\"L%3CT%3CH\"\r
\n" ); document.write( "\n" ); document.write( "Let u = liters of L%
\n" ); document.write( "Let v = liters of H%\r
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\n" ); document.write( "\n" ); document.write( "\"%28Lu%2BHv%29%2FM=T\" and \"u%2Bv=M\"
\n" ); document.write( "The only unknowns are u and v. Solve this system for u and v.
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