SOLUTION: A financial planner invested a certain sum at 9%, twice that amount at 10%, and three times that amount at 11%.find the amount invested at each rate if her total yearly income from

Question 1012076: A financial planner invested a certain sum at 9%, twice that amount at 10%, and three times that amount at 11%.find the amount invested at each rate if her total yearly income from the three investments was P27900.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A financial planner invested a certain sum at 9%,
let x = amt invested at 9%
twice that amount at 10%,
(2x) = amt invested at 10%
and three times that amount at 11%.
(3x) = amt invested at 11%
find the amount invested at each rate if her total yearly income from the three investments was P27900.
:
.09x + .1(2x) + .11(3x) = 27900
.09x + .2x + .33x = 27900
.62x = 27900
x = 27900/.62
x = 45000 invested at 9%
I'll let you find the amts invested at 10 and 11%
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