SOLUTION: Mr. Jackson invested a sum of money at 6% per year, and 3 times as much at 4% per year. How much did he invest at each rate if his annual return totaled $144? Ms. Blackmon i

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Question 1105908: Mr. Jackson invested a sum of money at 6% per year, and 3 times as much at 4% per year. How much did he invest at each rate if his annual return totaled $144?

Ms. Blackmon invested $8000, part at 4% and the rest at 5% per year. How much did she invest at each rate if her total return per year on the investments was $380?

Answer by ikleyn(52855)   (Show Source): You can put this solution on YOUR website!
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