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Mathematics, 30.11.2020 21:00 hela9astrid
A retired couple invested part of $12,600 at 6% interest and the rest at 7.5%. If their annual income from these investments is $831, how much was invested at each rate?
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A retired couple invested part of $12,600 at 6% interest and the rest at 7.5%. If their annual incom...
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