document.write( "Question 1181940: Determine the sum of the following series (hint: the answer will have the variable 𝑘):
\n" ); document.write( "4𝑘 + 11𝑘 + 18𝑘 + ⋯ + 74𝑘\r
\n" ); document.write( "\n" ); document.write( "I NEED HELP ASAP!! THANKS \n" ); document.write( "

Algebra.Com's Answer #811900 by ikleyn(52788) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "The sum is the AVERAGE of the first term and the last term, taken    =  = 10+1 = 11 times.\r\n" );
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document.write( "The average of the first and the last terms is   =  = 39k.\r\n" );
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document.write( "So the total sum is  (39k)*11 = 429k.      ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "This problem is on Arithmetic progressions.\r
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\n" ); document.write( "\n" ); document.write( "For introductory lessons on arithmetic progressions see \r
\n" ); document.write( "\n" ); document.write( "    - Arithmetic progressions\r
\n" ); document.write( "\n" ); document.write( "    - The proofs of the formulas for arithmetic progressions \r
\n" ); document.write( "\n" ); document.write( "    - Problems on arithmetic progressions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on arithmetic progressions\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - 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 \"Arithmetic progressions\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "into your archive and use when it is needed.\r
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