document.write( "Question 772954: What is the common difference of a 57-term arithmetic sequence where the first term is -25 and the sum is 17,727?
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document.write( " 11
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document.write( " 11.5
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document.write( " 12
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document.write( " 12.5 \n" );
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Algebra.Com's Answer #471213 by josgarithmetic(39625) ![]() You can put this solution on YOUR website! Your general term is \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "For the LastTerm, you know n=57 but still not know d. This term is like, \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Put this all into the sum equation and as n=57. \n" ); document.write( " \n" ); document.write( "Solve for d. \n" ); document.write( " |