cingkook4 cingkook4
  • 23-11-2020
  • Mathematics
contestada

URGENT PLS HELP!!
If 14 g of radioactive substance are present initially and 8 yr later only 7 g remain , how much of the substance will be present after 19 yr?

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26edemoss
26edemoss 26edemoss
  • 23-11-2020

Answer:

2.32g after 8 years

Step-by-step explanation:

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jaedyme9297
jaedyme9297 jaedyme9297
  • 23-11-2020

Answer:

none again

Step-by-step explanation:

7/8=0.875

19*0.875=16.625

14-16.625=-2.625

none

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