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15 May, 08:47

Brian invests £4000 into his bank account.

He receives 7% per year compound interest.

How many years will it take for Brian to have more than £8000?

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Answers (2)
  1. 15 May, 09:49
    0
    It will take for Brian 7.14 years.

    Step-by-step explanation:

    I=PRT

    4,000=8,000*7/100*T

    4,000=560T (then you divide 560 from both sides.)

    T=7.14
  2. 15 May, 09:54
    0
    It will take Brian 10 years to have more than 8000
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