document.write( "Question 1148679: A chemist wants to make 57 ml of a 17% acid solution by mixing an 11% acid solution and a 20% acid solution. How many milliliters of each solution should the chemist use? \n" ); document.write( "
Algebra.Com's Answer #770027 by ikleyn(52790)\"\" \"About 
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document.write( "Let x be the volume of the 20% solution, in milliliters;  then the volume of the 11% solution is (57-x) mL.\r\n" );
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document.write( "Your basic equation is\r\n" );
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document.write( "    \"0.20x+%2B+0.11%2857-x%29\" = 0.17*57\r\n" );
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document.write( "saying that the total pure acid volume in the ingredients is equal to the pure acid volume in the mixture.\r\n" );
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document.write( "From the equations,  express x and calculate\r\n" );
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document.write( "    x = \"%28017%2A57-0.11%2A57%29%2F%280.20-0.11%29\" = 38.\r\n" );
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document.write( "ANSWER.  38 mL of the 20% solution and the rest,  57-38 = 19 mL of the 11% solution.\r\n" );
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document.write( "CHECK.  I will check if the concentration is correct.\r\n" );
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document.write( "               Concentration = \"%280.20%2A38%2B0.11%2A19%29%2F%2838%2B19%29\" = 0.17.   ! Precisely correct !\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a standard and typical mixture problem.\r
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\n" ); document.write( "\n" ); document.write( "For introductory lessons covering various types of mixture word problems see\r
\n" ); document.write( "\n" ); document.write( "    - Mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - More Mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving typical word problems on mixtures for solutions \r
\n" ); document.write( "\n" ); document.write( "    - Typical word problems on mixtures from the archive\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "You will find there ALL TYPICAL mixture problems with different methods of solutions,
\n" ); document.write( "explained at different levels of detalization,  from very detailed to very short.\r
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution mixture word problems.\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook in the section \"Word problems\" under the topic \"Mixture problems\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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