Sugar dissolves in water at a rate proportional to the amount still undissolved. If there were 70 kg of sugar present initially, and at the end of 4 hours only 30 kg is left, how many more hours will it take until 80 percent of the sugar is dissolved?
Sugar dissolves in water at a rate proportional to the amount still undissolved. If there were 70 kg of sugar present initially, and at the end of 4 hours only 30 kg is left, how many more hours will it take until 80 percent of the sugar is dissolved?
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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Sugar dissolves in water at a rate proportional to the amount still undissolved. If there were 70 kg of sugar present initially, and at the end of 4 hours only 30 kg is left, how many more hours will it take until 80 percent of the sugar is dissolved?
![Sugar dissolves in water at a rate proportional to the amount still undissolved. If
there were 70 kg of sugar present initially, and at the end of 4 hours only 30 kg
is left, how many more hours will it take until 80 percent of the sugar is
dissolved?
5.9 hours
O 2.6 hours
O 7.6 hours
3.6 hours](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F18066ae2-4acb-4ab1-8c19-670d44104b4d%2Fd1a144ac-6818-425f-a889-d9d9b8eceb42%2Fmhm6ntk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Sugar dissolves in water at a rate proportional to the amount still undissolved. If
there were 70 kg of sugar present initially, and at the end of 4 hours only 30 kg
is left, how many more hours will it take until 80 percent of the sugar is
dissolved?
5.9 hours
O 2.6 hours
O 7.6 hours
3.6 hours
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