# SOLUTION: You invest \$12,000 in two funds paying 5.5% and 7.5% simple interest. The total annual interest is \$772.50. How much is invested in each fund?

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 Click here to see ALL problems on Money Word Problems Question 113977: You invest \$12,000 in two funds paying 5.5% and 7.5% simple interest. The total annual interest is \$772.50. How much is invested in each fund?Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!.075*X+.055(12,000-X)=772.50 .075X+660-.055X=772.50 .02X=772.50-660 .02X=112.50 X=112.50/.02 X=5,625 IS THE AMOUNT INVESTED @ 7.5%. THUS12,000-5,625=6,375 INVESTED @ 5.5% PROOF: .075*5625+.055*6,375=772.50 421.875+350.625=772.50 772.50=772.50