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Alicia buys a new car for $20,000. The value of the car decreases by 15% each year.

In about how many years will the value of the car be $10,440?

 

4 years

5 years

6 years

7 years

 Jan 7, 2019
 #2
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thank you 

 Jan 7, 2019
 #4
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20,000 (1-.15)^x  =  10440

.85^x = 10440/20000

x log(.85) = log(10440/20000)

x = 4.00 years

 Jan 7, 2019

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