Car value

The car loses value by 15% every year.

Determine a time (in years) when its price will halve.

Correct answer:

n =  4.265

Step-by-step explanation:

r=100%15%=110015=0.85  rn = 0.5 n ln r = ln 0.5  n=lnrln0.5=ln0.85ln0.5=4.265



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You need to know the following knowledge to solve this word math problem:

algebrabasic operations and conceptsUnits of physical quantitiesGrade of the word problem

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