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Thread: simple interest investment

  1. August 12th 2010, 06:16 PM #1
    vegito12
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    simple interest investment

    Tamara invests $30,000 in an account earning 7% interest per year over the next 4 years. How much (simple) interest will her investment earn in total?

    i got
    100 x 30,000 = 2100 x 4 yrs = $8400
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  2. August 12th 2010, 08:00 PM #2
    pickslides
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    I = \frac{PRT}{100}= \frac{30,000\times 7 \times 4 }{100}= \dots
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