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Mathematics, 24.03.2021 04:00 Rodriguezi4971

A retired couple invested part of $13,000 at 6% interest and the rest at 7.5%. If their annual income from these investments is $861, how much was invested at each rate?

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A retired couple invested part of $13,000 at 6% interest and the rest at 7.5%. If their annual incom...

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