Respuesta :
Answer:
The interest which she has earned is $200.226
Step-by-step explanation:
Given as :
The principal deposited in account = $260
The time period = 7 years
The interest earn 8.5% compounded annually
Let The amount after 7 years = A
So , From compounded method
Amount = Principal × [tex](1+\frac{Rate}{100})^{Time}[/tex]
Or, Amount = $260 × [tex](1+\frac{8.5}{100})^{7}[/tex]
Or, Amount = $260 × [tex](1.085)^{7}[/tex]
Or, Amount = $260 × 1.7701
∴ Amount = $460.226
Now, Compound Interest added = Amount - Principal
or, CI = $460.226 - $260
∴ CI = $200.226
Hence The interest which she has earned is $200.226 Answer