document.write( "Question 68536This question is from textbook Glencoe Pre-Algebra
\n" ); document.write( ": What is the 25th even integer? \n" ); document.write( "
Algebra.Com's Answer #48748 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
What is the 25th even integer?\r\n" );
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document.write( "You could write the first twenty five of them and see.\r\n" );
document.write( "Or you could count them on your fingers to 25, but \r\n" );
document.write( "that's probably not what your teacher wanted you to \r\n" );
document.write( "do.  I'm guessing you are studying sequences.\r\n" );
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document.write( "2,4,6...\r\n" );
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document.write( "is an arithmetic sequence, the nth term, an, is \r\n" );
document.write( "given by the formula\r\n" );
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document.write( "an = a1 + (n-1)d \r\n" );
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document.write( "where a1 = the first term and n = the number of term.\r\n" );
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document.write( "Here n = 25, so we want to find a25.  The common \r\n" );
document.write( "difference between even integers is 2, so d = 2.  \r\n" );
document.write( "The first term is 2, so a1 = 2.\r\n" );
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document.write( " an = a1 + (n-1)d\r\n" );
document.write( "a25 = 2 + (25-1)(2)\r\n" );
document.write( "a25 = 2 + (24)(2)\r\n" );
document.write( "a25 = 2 + 48\r\n" );
document.write( "a25 = 50\r\n" );
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document.write( "I'll bet you could have guessed it would be \r\n" );
document.write( "twice 25, couldn't you?\r\n" );
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document.write( "Edwin
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