Mathematics, 07.11.2019 07:31 silverns

Sodium - 24 has a hourly decay rate of 5%
how many grams of a 900 g sample will remain after 90 hours ?
round the answer to two decimal places

• 7.03 g
•7.50 g
•8.90 g
•28.13 g

hurry !

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Sodium - 24 has a hourly decay rate of 5%
how many grams of a 900 g sample will remain after...