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29 March, 20:51

Maria bought a used chair for x dollars. This year the value of the chair was 0.66x. Which expression also describes the change in value of the chair?

a) 0.34% decrease b) 0.66% decrease

c) 34% decrease d) 66% decrease

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Answers (1)
  1. 29 March, 22:48
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    For this case we have that the change in the value of the chair is given by:

    x-0.66x = 0.34x

    The percentage of decrease is given by:

    (0.34) * (100) = 34%

    Therefore, the chair had a decrease in the cost of 34%

    Answer:

    c) 34% decrease
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