(10) A substance grows exponentially, and its weight doubles every 3 hours. Suppose it weighs 2 pounds at noon. After how many hours will it weigh 9 pounds? (Do not try to simplify your answer.)
(10) A substance grows exponentially, and its weight doubles every 3 hours. Suppose it weighs 2 pounds at noon. After how many hours will it weigh 9 pounds? (Do not try to simplify your answer.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:(a) (10) A substance grows exponentially, and its weight doubles every 3 hours. Suppose it
weighs 2 pounds at noon. After how many hours will it weigh 9 pounds? (Do not try to
simplify your answer.
)
Expert Solution
Step 1
1st we will find equation for growth and then find unknown constant using given data After that we can find required time .
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