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18 July, 11:49

Janet invested $10,000, part at 2% and part at 12%. if the total interest at the end of the year is $600, how much did she invested at 2%

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  1. 18 July, 12:17
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    Janet invested $6000 at 2 %.

    Let x = amount invested at 2 %. Then 10 000 - x = amount invested at 12 %

    interest at 2 % + interest at 12 % = 600

    0.02x + 0.12 (10 000 - x) = 600

    0.02x + 1200 - 0.12x = 600

    0.10x = 600

    x = 600/0.10 = 6000
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