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Mathematics, 15.03.2020 05:56 pineapplepizaaaaa

Susan invests 2 times as much money at 9% as she does at 5%. If her total interest after 1 year is $1380, how much does she have invested at each rate?

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Susan invests 2 times as much money at 9% as she does at 5%. If her total interest after 1 year is $...

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