Question 1108946:  Peyton bought a car for $38,000 an it’s value depreciates 18% each year. After how many years will his car be worth less than $10,000? 
 Answer by stanbon(75887)      (Show Source): 
You can  put this solution on YOUR website! Peyton bought a car for $38,000 an it’s value depreciates 18% each year. After how many years will his car be worth less than $10,000?  
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Each year the car is worth 82% of last year's value. 
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Equation:: 
38000*0.82^x < 10,000 
0.82^x < 5/19 
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x < log(5/19)/log(0.82) 
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x < 6.72 years 
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Cheers, 
Stan H. 
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