SOLUTION: In planning her retirement, Liza deposits some money at 3.5% interests, with twice as much deposited at 4.5%. Find the amount deposited at each rate of the total annual interest in

Question 1039069: In planning her retirement, Liza deposits some money at 3.5% interests, with twice as much deposited at 4.5%. Find the amount deposited at each rate of the total annual interest income is $1250
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
0.035x+0.045(2x) = 1250
0.035x+0.09x = 1250
0.125x = 1250
x = 10,000 at 3.5% and
2x= 2(10,000) = 20,000 at 4.5%
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Check:
0.035*10,000 = 350
0.045*20,000 = 900
............-------
Total...........1,250 Correct
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