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Mathematics, 19.01.2020 06:31 seider8952

Mona invests $1000 at 7% yearly interest. how much does she have to invest at 4% so that the total yearly interest from the two investments exceeds $138?

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Mona invests $1000 at 7% yearly interest. how much does she have to invest at 4% so that the total y...
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