document.write( "Question 749623: how do i find the recursive formula: 20,30,40,50... \n" ); document.write( "
Algebra.Com's Answer #456092 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
There are many ways, this is a simple way:\r
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\n" ); document.write( "\n" ); document.write( "\"a%5B1%5D=20\"\r
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\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=a%5Bn-1%5D%2B10\"\r
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\n" ); document.write( "\n" ); document.write( ":)
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