# SOLUTION: todd cardella invested 10,000, from which he earns annual interest income of \$550 per year. he invested part of the 10,000 at 5% annual interest and the remainder bonds paying 6% i

Algebra ->  Algebra  -> College  -> Linear Algebra -> SOLUTION: todd cardella invested 10,000, from which he earns annual interest income of \$550 per year. he invested part of the 10,000 at 5% annual interest and the remainder bonds paying 6% i      Log On

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 Question 574456: todd cardella invested 10,000, from which he earns annual interest income of \$550 per year. he invested part of the 10,000 at 5% annual interest and the remainder bonds paying 6% interest. how much did he invest at each year?Answer by reviewermath(507)   (Show Source): You can put this solution on YOUR website!Let x=amount invested at 5% annual interest so 10000-x = amount invested at 6% annual interest 0.05x + 0.06(10000-x) = 550 0.05x + 600 - 0.06x = 550 -0.01x = -50 x = 5000 10000-x = 5000 Answer: \$5000 invested at 5% interest and the remaining \$5000 invested at 6% interest.