document.write( "Question 1190855: A 30% antifreeze solution is to be mixed with a 90% antifreeze solution to get 18 liters of a 40% solution. How many liters of the 30% and how many liters of the 90% solutions will be used? \n" ); document.write( "
Algebra.Com's Answer #822600 by ikleyn(52790)\"\" \"About 
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\n" ); document.write( "A 30% antifreeze solution is to be mixed with a 90% antifreeze solution to get
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document.write( "Let x = the volume of the 90% solution to use, in liters.\r\n" );
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document.write( "Then the volume of the 30% solution is (18-x).\r\n" );
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document.write( "The basic equation is\r\n" );
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document.write( "    0.90*x + 0.30*(18-x) = 0.4*28    (it is about the volume of the pure antifreeze)\r\n" );
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document.write( "From the equation\r\n" );
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document.write( "    x = \"%280.4%2A18-0.3%2A18%29%2F%280.90-0.30%29\" = 3 liters.\r\n" );
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document.write( "ANSWER.  3 liters of the 90% solution and (18-3) = 15 liters of the 30% solution.\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a standard and typical mixture word problem. \r
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\n" ); document.write( "\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( "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( "A convenient place to quickly observe these lessons from a  \"bird flight height\"  (a top view)  is the last lesson in the list.\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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