sa9nchAskyaralysand sa9nchAskyaralysand
  • 06-12-2016
  • Chemistry
contestada

Basalt with half live of 10 million years and 1/8 is remaining, how old is rock?

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Niyex
Niyex Niyex
  • 06-12-2016
you multiply 1/8 by 10,000,000 = 1,250,000 

we know 3 half life makes 1/8

1/2*1/2*1/2 = 1/8 .   3 half lifes.

3 * 1,250,000 = 3,750,000
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