Mathematics, 21.03.2021 08:50 mustafajibawi1

A stockbroker has money in three accounts. The interest rates on the three accounts are 7%, 8%, 9%. If she has twice as much money invested at 8% as she does in 7% Three times as much at 9% as she has at 7%, and the total interest for the year is $150 how much is invested at each rate?

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