document.write( "Question 199085: if n is a positive integer,then (6*10^-n)+(1*10^-n) must equal? \n" ); document.write( "
Algebra.Com's Answer #149538 by RAY100(1637)\"\" \"About 
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6*10^-n + 1* 10^-n
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\n" ); document.write( "6 / 10^n + 1/ 10^n = 7/10^n = 7*10^-n
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