document.write( "Question 1017338: Find sum of first 100 terms of an arithemetic
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Algebra.Com's Answer #633637 by Edwin McCravy(20056)\"\" \"About 
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Find sum of first 100 terms of an arithmetic
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document.write( "an = a1 + (n-1)d\r\n" );
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document.write( "86 = 2 + (15-1)d\r\n" );
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document.write( "84 = 14d\r\n" );
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document.write( "\"84%2F14\" = d \r\n" );
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document.write( "6 = d\r\n" );
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document.write( "Sn = \"n%2F2\"[2a1 + (n-1)d] \r\n" );
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document.write( "S100 = \"100%2F2\"[2(2) + (100-1)6]\r\n" );
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document.write( "S100 = 50[4 + (99)6]\r\n" );
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document.write( "S100 = 50[4 + 594]\r\n" );
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document.write( "S100 = 50[598]\r\n" );
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document.write( "S100 = 29900\r\n" );
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document.write( "Edwin

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