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Mathematics, 29.07.2019 19:20 kuon
Asample of a material has 4 radioactive particles in it today. your grandmother measured 8 radioactive particles in it 80 years ago. how many radioactive particles will the sample have 80 years from today?
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Asample of a material has 4 radioactive particles in it today. your grandmother measured 8 radioacti...
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