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horrorfan [7]
4 years ago
8

Brianna bought her car for $15,640. It is expected to depreciate an average of 15% each year during the first 7 years. What will

the approximate value of her car be in 7 years?
A. $4898

B. $5014

C. $5108

D. $5146
Mathematics
1 answer:
Andrews [41]4 years ago
6 0
This problem is modeled by the exponential growth/decay function which has the form:

F=Ir^t, F=final value, I=initial value, r=rate of change, t=time, in this case:

F=15640(1-.15)^t

F(t)=15640(0.85)^t so

F(7)=$5013.83  (to nearest cent)

They rounded to nearest dollar

$5014


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Answer:

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Step-by-step explanation:

The diagonal is the hypotenuse of the right triangle whose sides are the sides of the rectangle. The Pythagorean theorem applies.

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