math
posted by JT .
in 2001 it was estimated that 189 kg of plutonuim still remained. the half life of this plutonuim is 24,000 years. how much will be present in 24,000 years from 2001? please help

math 
Steve
duh  half as much (one halflife)

math 
Get Grammarly
You have to cut it in half. So it will be 94.5 kg.
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