Carbon Dating: Solving the Age of a Mummy's Shroud | Physics Assignment Help"

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Homework Statement


im doing a physics assignment on decay have completed most of it and am stuck on a question which i don't understand how to do, cud any1 help urgently?
Question is...


The cloth shroud of a mummy is found to have a 14C activity of 8.9 dpm g of carbon as opposed to living organisms which undergo 15.2 dpm g of carbon. Given the half –life of 14C is 5730 years what was the age of the shroud in years?

Im not to good at carbon dating could anyone help as much as possible to help me answer this, thankyou
 
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