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13-03-2017
Mathematics

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Lester deposited 400 into a savings account earning 4.5% simple interest, and $450 into an investment account earning 3.2% interest compounded annually. what was the total interest he earned in 3 years

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Aliwohaish12 Aliwohaish12

13-03-2017

Simple interest earned
I=prt
I=400×0.045×3=54
Compound balance after 3 years
A=p(1+r)^t
A=450×(1+0.032)^(3)=494.597
Compound interest earned=494.597−450=44.597
Total interest earned=54+44.597==98.597

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