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30 November, 13:06

Calculate the time it would take $7000 dollar investment to earn $1400 of simple interest at a rate of 4% per annum.

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  1. 30 November, 13:10
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    Answer: 5 years

    Step-by-step explanation:

    Hi, to answer this question we have to apply the simple interest formula:

    I = p x r x t

    Where:

    I = interest

    P = Principal Amount

    r = Interest Rate (decimal form)

    t = years

    Replacing with the values given

    1400 = 7000x (4/100) x t

    Solving for t:

    1400 = 7000 x 0.04 x t

    1400 = 280 t

    1400/280 = t

    t = 5 years

    Feel free to ask for more if needed or if you did not understand something.
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