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Mathematics 11 Online
OpenStudy (anonymous):

The half-life of rubidium-89 is 15 minutes. If the initial mass of the isotope is 250 grams, how many grams will be left after 100 minutes?

OpenStudy (anonymous):

@triciaal

OpenStudy (anonymous):

In 15 minutes: 125 grams 30 minutes: 62.5 grams 45 minutes: 31.25 grams 60 minutes: 15.625 grams

OpenStudy (anonymous):

@perl

OpenStudy (anonymous):

@iambatman

OpenStudy (anonymous):

2.46 grams, 0.0098 grams, 0.90 grams, or 225.31 grams

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