document.write( "Question 1100729: to make a 10% acid solution for chemistry class, Xavier wants to mix some 5% solution with 10L of 20% solution. How many liters of 5% solution should he use? \n" ); document.write( "
Algebra.Com's Answer #715262 by ikleyn(52788)\"\" \"About 
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document.write( "Let X = \"How many liters of 5% solution should he use\".\r\n" );
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document.write( "Your basic equation is THIS:\r\n" );
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document.write( "\"%280.05%2AX+%2B+0.2%2A10%29%2F%28X+%2B+10%29\" = 0.1\r\n" );
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document.write( "The numerator is the amount of the pure acid in the mixture, in liters.\r\n" );
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document.write( "The denominator is the total liquid volume, in liters\r\n" );
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document.write( "So, the ratio on the left side of the equation is the concentration of the acid in the mixture.\r\n" );
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document.write( "This concentration must be 10%, which is 0.1, so the equation is.\r\n" );
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document.write( "To solve the equation, multiply both sides by (X+10). You will get\r\n" );
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document.write( "0.05*X + 2 = 0.1*(X+10),\r\n" );
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document.write( "0.05X + 2 = 0.1X + 1  ====>  2 - 1 = 0.1X - 0.05X  ====>  1 = 0.05X  ====>  X = \"1%2F0.05\" = 20.\r\n" );
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document.write( "Answer.  Xavier must use 20 liters of the 5% acid solution.\r\n" );
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document.write( "Check.   \"%280.05%2A20+%2B+0.2%2A10%29%2F%2820%2B10%29\" = 0.01,   the correct concentration.\r\n" );
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\n" ); document.write( "There is entire bunch of introductory lessons covering various types of mixture problems\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( "    - Word problems on mixtures for antifreeze solutions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for alloys \r
\n" ); document.write( "\n" ); document.write( "    - Typical word problems on mixtures from the archive\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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