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A radioactive element decays at a rate of 5.25% annually. There are 35 grams of the substance present. How much of the substance remains after 12 years (Round to the nearest hundredth)? TEKS A2.5(B)(D)
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22 votes
22 votes
A radioactive element decays at a rate of 5.25% annually. There are 35 grams of the substance

present. How much of the substance remains after 12 years (Round to the nearest hundredth)?
TEKS A2.5(B)(D)

User Sanbor
by
3.0k points

1 Answer

22 votes
22 votes

Answer:

18.32 gm

Explanation:

= 35 ( 1-.0525)^12 = 18.32 gm remain

User David Tesar
by
3.2k points
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