document.write( "Question 1023337: What is the sum of all of the odd numbers from 21 to 39? \n" ); document.write( "
Algebra.Com's Answer #731293 by Alan3354(69443)\"\" \"About 
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What is the sum of all of the odd numbers from 21 to 39?
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\n" ); document.write( "10 odd numbers.
\n" ); document.write( "--> 5 pairs:
\n" ); document.write( "21 + 39
\n" ); document.write( "23 + 37
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\n" ); document.write( "Each pair is 60
\n" ); document.write( "5*60 = 300
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