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Mathematics, 26.08.2019 16:30 nya95

Atotal of $21,000 is invested in two bonds that pay 4% and 7.5% simple interest. the bond with 7.5 % interest rate earned 6 times as much interest. as the bond with a 4 % interest. rate. how much is invested in each bond? what was the total interest earned?

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Atotal of $21,000 is invested in two bonds that pay 4% and 7.5% simple interest. the bond with 7.5 %...
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