The amount A (in g) remaining of a radioactive substance after time t (in years) is found by solving the equation dA + 0.039A dt = 0. If there are 250 grams of the substance initially, when will 75% of the original amount have decayed? Round-off your final answer to two decimal places.
The amount A (in g) remaining of a radioactive substance after time t (in years) is found by solving the equation dA + 0.039A dt = 0. If there are 250 grams of the substance initially, when will 75% of the original amount have decayed? Round-off your final answer to two decimal places.
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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![The amount A (in g) remaining of a radioactive substance after time t (in
years) is found by solving the equation
dA + 0.039A dt = 0. If there are 250 grams of the substance initially, when will
75% of the original amount have decayed? Round-off your final answer to
two decimal places.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4c000ad5-4103-45c2-af5d-d816b2a3d770%2F7c7efe80-6785-4950-acac-6bbdf7670a49%2Fkeaj0o_processed.png&w=3840&q=75)
Transcribed Image Text:The amount A (in g) remaining of a radioactive substance after time t (in
years) is found by solving the equation
dA + 0.039A dt = 0. If there are 250 grams of the substance initially, when will
75% of the original amount have decayed? Round-off your final answer to
two decimal places.
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