document.write( "Question 1158613: different amounts are invested at 10%, 11%, and 12% yearly interest. the amount invested at 11% is $300 more than the amount invested at 10% and the total yearly income from all 3 investments is $324. a total of $2900 is invested. find the amount invested at each rate. \n" ); document.write( "

Algebra.Com's Answer #781592 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "This problem can be solved using ONE single equation for ONLY ONE unknown, as the tutor @MathTherapy showed tou.\r
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\n" ); document.write( "\n" ); document.write( "Moreover, this problem is designed, intended and expected to be solved in this way.
\n" ); document.write( "It is SPECIALLY INTENDED to teach the student this method.\r
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\n" ); document.write( "\n" ); document.write( "The complications, made by @josmicely, are absolutely unjustified and guide the student in the way to NOWHERE.\r
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\n" ); document.write( "\n" ); document.write( "This problem is intended for 7-th grade middle school students, who did not study systems of equations yet.\r
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\n" ); document.write( "\n" ); document.write( "@josmicely, I explained this doctrine, probably, 30 times in this forum, and I am VERY SURPRISED that my explanations
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\n" ); document.write( "Comment from student: answering a question does not mean criticizing other people’s ways of solving math,
\n" ); document.write( "nor is it agreeing with someone else’s solution. you should have to solve it yourself. you are very unhelpful.
\n" ); document.write( "stop answering questions if you are not going to do it properly.
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\n" ); document.write( "\n" ); document.write( "My response : \r
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document.write( "1.  Why do you think your opinion is right ?\r\n" );
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document.write( "    I think, in opposite, that in the given concrete case MY OPINION IS RIGHT.\r\n" );
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document.write( "2.  Since my knowledge in Math (and my understanding on how to TEACH Math) is 1000 times greater than yours, you better \r\n" );
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document.write( "    listen to me attentively.\r\n" );
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document.write( "3. The best response from your side, when I write to you, is to say \"THANKS\".\r\n" );
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document.write( "    Any other response/answer from your side is WRONG.\r\n" );
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document.write( "4.  At this forum, half of so named (so called) \"tutors\" have no enough qualification to be real tutors.\r\n" );
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document.write( "    And they produce a huge amount incorrect solutions EVERY day.\r\n" );
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document.write( "    Therefore, I perform here some functions of a police officer and a cleaner to support some order at the forum.\r\n" );
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document.write( "    It means that, in addition to my numerous own solutions, I am cleaning after that \"tutors\", by re-writing their \"solutions\" every day.\r\n" );
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document.write( "    Without it, the forum will quickly become a GARBAGE BOX and a TRASH SECTION.\r\n" );
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document.write( "    Can you imagine some kind of democracy without police officers ? - It will quickly degenerate to  сhaos.\r\n" );
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document.write( "    So, supporting the order here, I work for you, by the way and in particular (!)\r\n" );
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document.write( "    Do you understand it ?\r\n" );
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document.write( "5.  Regarding your complains that you do not understand my solutions, could you refer to such my posts ?\r\n" );
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document.write( "    I, in opposite, think, that my solutions and explanations are OF THE BEST at this forum.\r\n" );
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document.write( "    So, give me a reference, and I am ready to discuss YOUR PROBLEMS with you.\r\n" );
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document.write( "     I am looking forward to hear from you.\r\n" );
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document.write( "                           Have a nice day (!)\r\n" );
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document.write( "P.S.  I also understand that some visitors at the forum may not understand a solution to any arbitrary problem -\r\n" );
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document.write( "      even although a whole army of professors will explain them - people are different.\r\n" );
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document.write( "      Keeping it in mind, I work here partly for ETERNITY - for future generations of students,\r\n" );
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document.write( "      who may scoop knowledge from my solutions/posts in archive.\r\n" );
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document.write( "      It means, that not only you, the visitor, are in the focus of my attention, but future generations of students, too.\r\n" );
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document.write( "      In other words, if even you do not understand some solution - it is all right - the other generations students will learn from it (!)\r\n" );
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