document.write( "Question 732163: find the sum of the integer between 30 and 1000 that are divisible by 3 \n" ); document.write( "
Algebra.Com's Answer #464084 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
they are 33, 36, 39,...,999 (an arithmetic progression)\r
\n" ); document.write( "\n" ); document.write( "so...\r
\n" ); document.write( "\n" ); document.write( "\"a%5B1%5D=33\"\r
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\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=999\"\r
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\n" ); document.write( "\n" ); document.write( "\"n=%28a%5Bn%5D-a%5B1%5D%29%2Fd%2B1+=+%28999-33%29%2F3%2B1=323\"\r
\n" ); document.write( "\n" ); document.write( "As for the sum...\r
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\n" ); document.write( "\n" ); document.write( "\"s%5Bn%5D=%28n%2F2%29%28a%5B1%5D%2Ba%5Bn%5D%29=%28323%2F2%29%28999%2B33%29=166668\"\r
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\n" ); document.write( "\n" ); document.write( ":)
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