5 years. A decade means 10 years, so to find out how many years are in half of a decade you would simply divide 10 by 2, which is 5.
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four and a half.
5 years because it is half a decade.
A decade is ten years. Half a decade is five years.Therefore. four decades are forty years, plus the five years, totalling forty-five years (45 years).
A decade is 10 years. There is technically 365.25 days in a year. So 3652 and a half days in a decade
10 years in a decade.