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11 November, 22:16

Katie earned $1890 in 7 years on an investment at a 6% annual simple interest rate.

How much was Katie's investment?

$793.80

$945

$4500

$9000

+2
Answers (2)
  1. 11 November, 22:21
    0
    Her investment was $4500. To get this, you take 1890 and divide it by 7, giving you 270. This is 6% of 4500. To prove this, you would multiply 4500 by. 06, giving the answer of 270, which can then be multiplied by 7 (years) to equal $1890.
  2. 11 November, 22:36
    0
    793.80

    1890x6%=113.4

    113.4x7=793.80
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