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Cnveow meichdisintieoate intd MonthLIMon

Answer»

So at the end of month…One, 90% is left;Two, 90% of that 90% (= 81%) is left;Three, 90% of that 81% (= 72.9%) is left; andFour, 90% of that 72.9% (= 65.61%) is left.100% - 65.61% = 34.39% has disintegrated.Algebraically, d(n) = disintegrated percentage after n months = (1 - d(1))^n

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