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)![]() ![]() 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 \n" ); document.write( "(That's the easy way) \n" ); document.write( "The harder way is to use the formula for Sn... \n" ); document.write( " |