document.write( "Question 1106839: Need help! The universal set contains all from 1-20\r
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\n" ); document.write( "A=(multiples of 3
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Algebra.Com's Answer #721819 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Need help! The universal set contains all from 1-20
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document.write( "That means the the universal set U is:\r\n" );
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document.write( "U = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}\r\n" );
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\n" ); document.write( "Can you please help with answers? Thank you much!
\n" ); document.write( "A=(multiples of 3
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document.write( "Think of the multiplication facts for 3 that you learned in\r\n" );
document.write( "3rd grade:\r\n" );
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document.write( "1×3 = 3\r\n" );
document.write( "2×3 = 6\r\n" );
document.write( "3×3 = 9\r\n" );
document.write( "4×3 = 12\r\n" );
document.write( "5×3 = 15\r\n" );
document.write( "6×3 = 18\r\n" );
document.write( "7×3 = 21 <-- we stop with 18 because 21 is more than 20,\r\n" );
document.write( "and A must contain only numbers that are in U, the universal\r\n" );
document.write( "set. \r\n" );
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document.write( "So  A = {3,6,9,12,15,18}\r\n" );
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\n" ); document.write( "B=(odd numbers)
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document.write( "The EVEN numbers are the numbers that are or end with \r\n" );
document.write( "0,2,4,6, or 8.\r\n" );
document.write( "The ODD numbers are the numbers that are or end with \r\n" );
document.write( "1,3,5,7,or 9.\r\n" );
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document.write( "So for set B, we use only the numbers in U that are or \r\n" );
document.write( "end with 1,3,5,7,or 9.\r\n" );
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document.write( "So B = {1,3,5,7,9,11,13,15,17,19}\r\n" );
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document.write( "Edwin
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