document.write( "Question 1057510: a solution contains 5% salt. How much water should be added to 70 ounces of this solution to make 3.5% solution? \n" ); document.write( "

Algebra.Com's Answer #672563 by ikleyn(52800) $\"\"$ $\"About$

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\n" ); document.write( "a solution contains 5% salt. How much water should be added to 70 ounces of this solution to make 3.5% solution?
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document.write( "Let W be the volume of water to be added, in ounces.\r\n" );
document.write( "Then the total volume of liquid after adding will be 70+W ounces.\r\n" );
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document.write( "The \"salt\" equation is \r\n" );
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document.write( " = 0.035     ( 0.05 is 5%;  0.035 is 3.5% )\r\n" );
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document.write( "or, which is the same\r\n" );
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document.write( "0.05*70 = 0.035*(70+W).\r\n" );
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document.write( "Simplify. First, multiply both sides by 1000:\r\n" );
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document.write( "50*70 = 35(70+W),\r\n" );
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document.write( "3500 = 2450 + 35W,\r\n" );
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document.write( "3500 - 2450 = 35W,\r\n" );
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document.write( "1050 = 35W  --->  W =  = 30.\r\n" );
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document.write( "Answer.  30 ounces of water must be added.\r\n" );
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\n" ); document.write( "\n" ); document.write( "There is entire bunch of 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
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution the 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( "The textbook contains many other solved word problems, as well as many other interesting and useful things.\r
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