Math Problem Statement
The value V of a certain automobile that is t years old can be modeled by
Upper V left parenthesis t right parenthesis equals 14 comma 580 left parenthesis 0.79 right parenthesis Superscript tV(t)=14,580(0.79)t.
According to the model, when will the car be worth each of the following amounts?
(a)
$70007000
(b)
$50005000
(c)
$4000
Solution
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Math Problem Analysis
Mathematical Concepts
Exponential Decay
Algebra
Logarithms
Formulas
V(t) = 14,580(0.79)^t
t = ln(V/14,580) / ln(0.79)
Theorems
Logarithmic Decay
Suitable Grade Level
Grades 9-12