A cache of Hebrew manuscripts known as Dead Sea Scrolls was found in 1947. The activity of Carbon-14 in the linen wrappings of the Book of Isaiah was about 12 disintegration per minute per gram (d/ min*g). Calculate the approximate age of the linen.
(t1/2 of Carbon-14 is 5.73*10^3 years)
(the beta activity of Carbon-14 in living plants and in the air is constant at 15.3 d/min*g)