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A sample of rock is found to contain 100 grams of a parent isotope. How many grams of the parent isotope will remain after one half-life?

asked Nov 22, 2016

Physics
high-school

2 answers

3 votes

149k views

FRACTIONS! PLEASE EXPLAIN! Thanks! 1. 4 5/6 divided by 1 1/2= 2. 7 1/8 divided by 3 1/3= 3. 15/16 divided by 2/3= 4. 8 5/6 divided by 6 4/5= 5. 2 1/2 divided by 5/8= 6. 4 3/7 divided by 1 3/4=

asked Mar 23, 2016

Mathematics
middle-school

2 answers

3 votes

193k views

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