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If 14 g of a radioactive substance are present initially and 3 yr later only 7 g​ remain, how much of the substance will be present after 6 ​yr?
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If 14 g of a radioactive substance are present initially and 3 yr later only 7 g​ remain, how much of the substance will be present after 6 ​yr?

User Stamatis
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It would be 48 bc if you add it all up and subtract it and add again and multiply and divide and multiply within a and the substance of present after 6 yr you will see that i have wasted your time and that is not the answer
User Chaoss
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