document.write( "Question 1042980: A farmer has two types of feed. One has 5% digestible protein and the other 15% digestible protein. How much of each type will she need to mix 100lb of 12% digestible protein feed?\r
\n" ); document.write( "\n" ); document.write( "Let 5% digestible protein = x lb
\n" ); document.write( "Let 15% digestible protein = y lb
\n" ); document.write( "Total feed = 100 lb\r
\n" ); document.write( "\n" ); document.write( "So, the first equation:
\n" ); document.write( "\"+x%2By=100+\"\r
\n" ); document.write( "\n" ); document.write( "But, my problem is, how do I get the second equation?
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Algebra.Com's Answer #658081 by ikleyn(52803)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "A farmer has two types of feed. One has 5% digestible protein and the other 15% digestible protein. How much of each type will she need to mix 100lb of 12% digestible protein feed?\r
\n" ); document.write( "\n" ); document.write( "Let 5% digestible protein = x lb
\n" ); document.write( "Let 15% digestible protein = y lb
\n" ); document.write( "Total feed = 100 lb\r
\n" ); document.write( "\n" ); document.write( "So, the first equation:
\n" ); document.write( "\"+x%2By=100+\"\r
\n" ); document.write( "\n" ); document.write( "But, my problem is, how do I get the second equation?
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The second equation is\r
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\n" ); document.write( "\n" ); document.write( "0.05x + 0.15y = 0.12*100.\r
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\n" ); document.write( "\n" ); document.write( "There is a bunch of lessons on mixture problems in this site that teach you on how to solve them\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
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\n" ); document.write( "Comment from student: Thank you for the second equation! I have re-read the question for like a hundred times,
\n" ); document.write( "but I was still unable to figure out the second equation. Thank you again, but I'm still confused.
\n" ); document.write( "I mean, why do the 0.12 need to be multiplied with 100? Ah, I got it! I read the links to the lessons provided by you,
\n" ); document.write( "and it helps me a tonne! Thanks, I'll bookmark it.
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\n" ); document.write( "\n" ); document.write( "My response: I am glad to see/to hear it.\r
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\n" ); document.write( "\n" ); document.write( "One more notice: You have your free of charge online textbook in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK\r
\n" ); document.write( "\n" ); document.write( "full of useful lesson, well structured and logically organized.\r
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\n" ); document.write( "\n" ); document.write( "You also have the other free of charge online textbook in this site \r
\n" ); document.write( "\n" ); document.write( "    - GEOMETRY - YOUR ONLINE TEXTBOOK\r
\n" ); document.write( "\n" ); document.write( "with the same features . . . \r
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\n" ); document.write( "\n" ); document.write( "You also have MEGA-TONNES other my lessons in this site on Pre-Algebra and Algebra-II.\r
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