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Substance A decomposes at a rate proportional to the amount of A present. a) Write an equation that gives the amount A left of an initial amount A, after time t. b) It is found that 8 lb of A will reduce to 4 lb in 4.4 hr. After how long will there be only 1 lb left? a) Choose the equation that gives A in terms of An, t, and k, where k>0. - kt A A(t) Ap e O B. A(t) = A, e kt kt OC. A(1) = A, - kt D. A(t) = A, b) 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. a) Write an equation that gives the amount A left of an initial amount A, after time t. b) It is found that 8 lb of A will reduce to 4 lb in 4.4 hr. After how long will there be only 1 lb left? a) Choose the equation that gives A in terms of An, t, and k, where k>0. - kt A A(t) Ap e O B. A(t) = A, e kt kt OC. A(1) = A, - kt D. A(t) = A, b) 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
Chapter2: Equations And Inequalities
Section2.7: More On Inequalities
Problem 44E
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Substance A decomposes at a rate proportional to the amount of A present. a) Write an equation that gives the amount A left of an initial amount A, after time t. b) It is found that 8 lb of A will reduce to 4 lb in 4.4 hr. After how long will there be only 1 lb left? a) Choose the equation that gives A in terms of An, t, and k, where k>0. -kt A. A(t)= Ap e O B. A(t) = A, e kt kt OC. A() = A, - kt D. A(t) = A, b) 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. a) Write an equation that gives the amount A left of an initial amount A, after time t. b) It is found that 8 lb of A will reduce to 4 lb in 4.4 hr. After how long will there be only 1 lb left? a) Choose the equation that gives A in terms of An, t, and k, where k>0. -kt A. A(t)= Ap e O B. A(t) = A, e kt kt OC. A() = A, - kt D. A(t) = A, b) 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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