document.write( "Question 809915: Find the sum of the arithmetic sequence: 16+22+28+ ... +112 \n" ); document.write( "
Algebra.Com's Answer #488359 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
\"a%5B1%5D=16\"
\n" ); document.write( "\"a%5Bn%5D=112\"
\n" ); document.write( "\"d=22-16=6\"\r
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\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=a%5B1%5D%2B%28n-1%29d\"\r
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\n" ); document.write( "\n" ); document.write( "\"112=16%2B%28n-1%29%2A6\"\r
\n" ); document.write( "\n" ); document.write( "\"n=%28112-16%29%2F6%2B1=17\"\r
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\n" ); document.write( "\n" ); document.write( "\"S%5Bn%5D=%28n%2F2%29%28a%5B1%5D%2Ba%5Bn%5D%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"S%5Bn%5D=%2817%2F2%29%2816%2B112%29=1088\"\r
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