Solve the problem.A retired couple invested a total of $130,000. They invested some of the money in safe certificates of deposit yielding 5%. The remainder they invested in AA bonds yielding 10% per year. In the first year they made a total profit of $11,000. How much did they invest at each rate?

A. $80,000 at 5% and $50,000 at 10%
B. $90,000 at 10% and $40,000 at 5%
C. $90,000 at 5% and $40,000 at 10%
D. $100,000 at 10% and $30,000 at 5%


Answer: B

Mathematics

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