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11 September, 14:02

Michelle buys a motorcycle for $10,000. The motorcycle loses 20% of its value each year. The depreciation of the motorcycle is shown by the graph. After how many years is the value of the motorcycle worth $6400? A) 1 year B) 2 years C) 4 years D) 6 years

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Answers (2)
  1. 11 September, 15:33
    0
    6400=10000 (1-0.20) ^t

    Solve for t

    T=log (6400/10000) / log (1-0.20)

    T=2 years
  2. 11 September, 16:48
    0
    The answer is b 2 years
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