Mia M.
asked • 09/06/21The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quantity to fall to half its original amount.Carbon 14 has a half-line of 5730 years.Suppose given samples of carbon 14 weigh 5/8 of a pound and 7/8 of a pound.What was the total weight of the samples 11,460 years ago?
Raymond B. answered • 07/14/25
Math, microeconomics or criminal justice
that's 2 half lives ago
current pounds are 1/4 what they were 2 half lives ago
5/8 today was 4 times as much back then = 5/2 lbs
7/8 today was 4 times as much back then = 7/2 lbs
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