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Substance A decomposes at a rate proportional to the amount of A present. It is found that 18 lb of A will reduce to 9 lb in 4.3 hr. After how long will there be only 1 lb left? (...) There will be 1 lb left after hr. (Do not round until the final answer. Then round to the nearest whole number as needed.)

Substance A decomposes at a rate proportional to the amount of A present. It is found that 18 lb of A will reduce to 9 lb in 4.3 hr. After how long will there be only 1 lb left? (...) There will be 1 lb left after hr. (Do not round until the final answer. Then round to the nearest whole number as needed.)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 68E
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Substance A decomposes at a rate proportional to the amount of A present. It is found that 18 lb of A will reduce to 9 lb in 4.3 hr. After how long will there be only 1 lb left? (...) There will be 1 lb left after hr. (Do not round until the final answer. Then round to the nearest whole number as needed.)
Transcribed Image Text:Substance A decomposes at a rate proportional to the amount of A present. It is found that 18 lb of A will reduce to 9 lb in 4.3 hr. After how long will there be only 1 lb left? (...) There will be 1 lb left after hr. (Do not round until the final answer. Then round to the nearest whole number as needed.)
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