Last question i need ! < 3

a radioactive substance decays at a rate of 2% per day. if there are 50 grams of the
substance left after 34 days, how much was there at the beginning of the 34 days?
round to two decimal places.

  99.38 grams

Step-by-step explanation:

The given information can be translated to the exponential function ...

  q = 50·0.98^(t -34) . . . . . t in days

Then for t=0, we have ...

  q = 50·0.98^(-34) ≈ 99.38 . . . . grams

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step-by-step explanation:

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