document.write( "Question 1165510: What is the 58th term of sequence 540, 495,450? \n" ); document.write( "
Algebra.Com's Answer #789998 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Instead of doing yours for you, I'll find the 47th term of the sequence\r\n" );
document.write( "560, 505, 450, \r\n" );
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document.write( "First subtract the 2nd term minus the 1st term, 505-560 = -55\r\n" );
document.write( "Now subtract the 3rd term minus the 2nd term,   450-505 = -55\r\n" );
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document.write( "So this is an arithmetic sequence since they are the same, and the\r\n" );
document.write( "first term a1 = 560, and the common difference = d = -55 \r\n" );
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document.write( "The formula is:\r\n" );
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document.write( "\"a%5Bn%5D=a%5B1%5D%2B%28n-1%29d\"\r\n" );
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document.write( "Substituting:\r\n" );
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document.write( "\"a%5B47%5D=560%2B%2847-1%29%28-55%29\"\r\n" );
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document.write( "\"a%5B47%5D=560%2B%2846%29%28-55%29\"\r\n" );
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document.write( "\"a%5B47%5D=-1970\"\r\n" );
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document.write( "Answer: -1970\r\n" );
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document.write( "Now do yours the exact same way.\r\n" );
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document.write( "Edwin
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