If you open a bank account with a $200 starting balance and it earns 2.5% interest, compounded annually, how much interest will you earn in 10 years?
2 answers:
Answer:
$56.02
Step-by-step explanation:
The account balance after 10 years is given by the future value formula:
FV = P(1 +r)^t . . . . . principal P invested at rate r compounded annually for t years
FV = $200(1 +0.025)^10 ≈ $256.02
The amount in excess of the original investment is the interest earned:
$256.02 -200.00 = $56.02 . . . . interest earned in 10 years
Answer:
$256.02
Step-by-step explanation:
Here is the formula: 200(1.025)^10.
The .025 is the percentage of the interest, and the 1 is the money you already have (which is 200). The ^10 is the 10 years.
If you take the (1.025)^10, you'll get an incredibly large number, 1.2800....
Take that large number and multiply it by the amount of money you originally have, $200. Then you'll get something like 256.0169... Round to the near hundredth, and you'll have 256.02
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