The one-third life of DDT, a pesticide is 15 years. A 720 g sample of DDT was prepared recently. Find the amount that will be remaining after 45 years.
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Answer:
None (0 g)
Step-by-step explanation:
One-third of DDT finishes in 15 years.
1/3rd of 720g = 720/3 = 240g
45 = 15x3
total = 240x3
=720.
720 - 720 = 0 g.
So no DDT will be left.
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