document.write( "Question 1130150: a contractor mixes concrete from bags of pre-mix for small jobs how many bags with 6% cement should he mix with 5 bags of 18.8% cement to produce a mix containing 10% cement? \n" ); document.write( "

Algebra.Com's Answer #746812 by ikleyn(52794) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " Since the solution and the answer by @josgarithmetic are both T O T A L L Y W R O N G, I came to fix it.\r
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\n" ); document.write( "\n" ); document.write( " Below find my correct solution.\r
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document.write( "x bags of 6% cement\r\n" );
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document.write( "5 bags of 18.8% cement\r\n" );
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document.write( "want 10% cement\r\n" );
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document.write( "     =      (*)\r\n" );
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document.write( "It is your basic equation to solve.\r\n" );
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document.write( "    18.8*5-50 = \r\n" );
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document.write( "    x = \r\n" );
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document.write( "    x = 11  bags of the 6% cement mix.       Answer\r\n" );
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document.write( "CHECK.  Left side of the equation (*)  0.06*11 + 0.188*5 = 1.6 is the pure cement amount\r\n" );
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document.write( "        Right side of the equation (*)  0.1*(11+5)       = 1.6 is the pure cement amount.    ! Both sides are equal  - the solution is CORRECT !\r\n" );
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\n" ); document.write( "\n" ); document.write( "---------------\r
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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 dry substances like coffee beans, nuts, cashew and peanuts\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for dry substances like candies, dried fruits\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for dry substances like soil and sand (*)\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( "    - Advanced mixture problems \r
\n" ); document.write( "\n" ); document.write( "    - Advanced mixture problem for three alloys \r
\n" ); document.write( "\n" ); document.write( "    - OVERVIEW of lessons on word problems for mixtures\r
\n" ); document.write( "\n" ); document.write( "in this site.\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( "The most relevant of them is the lesson marked (*) in the list.\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 online textbook 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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