Zinc-65 is a radioactive substance that decays over time. If you start with 100 grams of zinc-65, the amount left after t years can be modeled by the expression 100720t.What does the quantity 720t represent?
Question
Zinc-65 is a radioactive substance that decays over time. If you start with 100 grams of zinc-65, the amount left after t years can be modeled by the expression 100720t.What does the quantity 720t represent?
Solution
The quantity 720t in the expression represents the rate of decay of Zinc-65 over time. Specifically, it indicates that Zinc-65 decays at a rate of 720 grams per year. The variable 't' stands for the number of years. So, for each year that passes, the amount of Zinc-65 decreases by 720t grams.
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