Question
A certain element has a half life of 3.5 3.5 billion years. a. You find a rock containing a mixture of the element and lead.
A certain element has a half life of 3.5
3.5 billion years.
a. You find a rock containing a mixture of the element and lead. You determine that 30
30% of the original elementremains; the other 70
70% decayed into lead. How old is therock?
b. Analysis of another rock shows that it contains 65
65% of its originalelement; the other 35
35% decayed into lead. How old is therock?
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College Algebra Graphs and Models
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
5th edition
321845404, 978-0321791009, 321791002, 978-0321783950, 321783956, 978-0321845405
