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13 July, 12:59

How much time would it take to earn $45 simple interest on an investment of $790 if the annual rate of return was 3.4%?

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  1. 13 July, 13:14
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    I will take around 1 year and 8 months to earn $ 45 of interest on this investment

    Step-by-step explanation:

    1. Let's review the information provided to us to answer the question correctly:

    Interest earned = $ 45

    Investment = $ 790

    Annual simple interest rate = 3.4% = 0.034

    2. How much time would it take to earn $45?

    Let's recall the formula for calculating the simple interest of an investment:

    A = P * (1 + rt)

    Replacing with the values we already have:

    835 = 790 + (1 + 0.034t).

    Where t is the time we want to calculate

    835 = 790 + 26.86t

    26.86t = 835 - 790

    26.86t = 45

    t = 1.68 (Rounding to the next hundredth)

    t ≅ 1 year and 8 months
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