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Brianna invested 
$800 in an account that pays 
2% interest compounded annually. Assuming no deposits or withdrawals are made, find how much money Brianna would have in the account 15 years after her initial investment. Round your answer to the nearest whole number.
Answer: 
$ □

Brianna invested $800 \$ 800 in an account that pays 2% 2 \% interest compounded annually. Assuming no deposits or withdrawals are made, find how much money Brianna would have in the account 1515 years after her initial investment. Round your answer to the nearest whole number.\newlineAnswer: $ \$ \square

Full solution

Q. Brianna invested $800 \$ 800 in an account that pays 2% 2 \% interest compounded annually. Assuming no deposits or withdrawals are made, find how much money Brianna would have in the account 1515 years after her initial investment. Round your answer to the nearest whole number.\newlineAnswer: $ \$ \square
  1. Given Information: We have:\newlineInitial investment (Principal, PP): $800\$800\newlineAnnual interest rate (rr): 2%2\% or 0.020.02 in decimal\newlineNumber of years (tt): 1515\newlineInterest is compounded annually (nn): 11 time per year\newlineWe will use the compound interest formula: A=P(1+r/n)(nt)A = P(1 + r/n)^{(nt)}\newlineWhere $800\$80000 is the amount of money accumulated after nn years, including interest.\newlineLet's calculate the amount $800\$80000.
  2. Convert to Decimal: First, convert the interest rate from a percentage to a decimal by dividing by 100100. \newlineInterest rate in decimal = 2%/100=0.022\% / 100 = 0.02
  3. Plug into Formula: Now, plug the values into the compound interest formula.\newlineA=800(1+0.021)(1×15)A = 800(1 + \frac{0.02}{1})^{(1\times15)}
  4. Simplify Expression: Simplify the expression inside the parentheses.\newlineA=800(1+0.02)15A = 800(1 + 0.02)^{15}
  5. Add Numbers: Add the numbers inside the parentheses.\newlineA=800(1.02)15A = 800(1.02)^{15}
  6. Calculate Value: Now, calculate the value of (1.02)15(1.02)^{15}. \newlineA=800×(1.02)15A = 800 \times (1.02)^{15}\newlineUsing a calculator, (1.02)151.3498588075760032(1.02)^{15} \approx 1.3498588075760032
  7. Multiply Principal: Multiply the principal amount by the calculated value.\newlineA=800×1.3498588075760032A = 800 \times 1.3498588075760032\newlineA800×1.3499A \approx 800 \times 1.3499 (rounded to four decimal places for simplicity)
  8. Perform Multiplication: Now, perform the multiplication to find the total amount.\newlineA800×1.3499A \approx 800 \times 1.3499\newlineA1079.92A \approx 1079.92
  9. Round Answer: Round the answer to the nearest whole number as instructed.\newlineA$1080A \approx \$1080

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