SOLUTION: In planning her retirement,Liza deposits some money at 3.5% interest, with twice as much deposited at 5%. Find the amount deposited at each rate if the total annual interest income

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Question 1133370: In planning her retirement,Liza deposits some money at 3.5% interest, with twice as much deposited at 5%. Find the amount deposited at each rate if the total annual interest income is $1620
Answer by ikleyn(52775) About Me  (Show Source):
You can put this solution on YOUR website!
.
0.035x + 0.05*(2x) = 1620    dollars, the total interest.


Simplify and solve for x.