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Mathematics, 02.10.2021 19:30 ayoismeisalex

Calvin invested $7500 for one year, part at 12% annual interest and the rest at 10% annual interest. His total interest for the year was $890. How much money did he invest at 12%?

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Calvin invested $7500 for one year, part at 12% annual interest and the rest at 10% annual interest....
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