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svlad2 [7]
3 years ago
7

The half-life of a certain radioactive element is 35 hours. If there are 904 grams of this element, how much will be left after

70 hours? (please help I might fail Math.)
Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

226 grams

Step-by-step explanation:

This will be an exponential function. The formula for exponential functions and half life is A=Ao * (1/2)^(t/h)

A stands for final amount, Ao for initial amount, 1/2 is the decaying factor (after a half life, one mg becomes 1/2 mg), t stands for time, and h is the half life.

To solve your problem, the equation would be A=904 * (1/2)^(70/35)

The parentheses are necessary for your calculator or else you will get the wrong answer.

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