document.write( "Question 1032812: Find a1 if Sn=468, an=375, and r=5. \n" ); document.write( "
Algebra.Com's Answer #647410 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
Well, you could list the numbers in the series in reverse order, dividing by five each time...as in
\n" ); document.write( "375 + 75 + 15 + 3 = 468
\n" ); document.write( "so that \"a%5B1%5D+=+3\"
\n" ); document.write( "(That's the easy way)
\n" ); document.write( "The harder way is to use the formula for Sn...
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