Bo deposits $490 every year into an account earning an annual interest rate of 5.3% compounded annually. How much would he have in the account after 3 years, to the nearest dollar? Use the following formula to determine your answer.A=d(i(1+i)n−1)A= the future value of the account after n periodsd= the amount invested at the end of each periodi= the interest rate per periodn= the number of periodsAnswer:
Q. Bo deposits $490 every year into an account earning an annual interest rate of 5.3% compounded annually. How much would he have in the account after 3 years, to the nearest dollar? Use the following formula to determine your answer.A=d(i(1+i)n−1)A= the future value of the account after n periodsd= the amount invested at the end of each periodi= the interest rate per periodn= the number of periodsAnswer:
Identify variables and amounts: Identify the variables from the problem to use in the formula.We have:d=$490 (the amount invested at the end of each period)i=5.3% or 0.053 (the interest rate per period)n=3 (the number of periods)
Convert interest rate to decimal: Convert the interest rate from a percentage to a decimal. i=5.3%=1005.3=0.053
Plug values into formula: Plug the values into the formula to calculate the future value of the account.A=d×(i(1+i)n−1)A=490×(0.053(1+0.053)3−1)
Calculate value inside parentheses: Calculate the value inside the parentheses.(1+i)n=(1+0.053)3(1+i)n=1.0533(1+i)n≈1.053×1.053×1.053(1+i)n≈1.162727
Subtract one from result: Subtract 1 from the result obtained in Step 4.(1+i)n−1≈1.162727−1(1+i)n−1≈0.162727
Divide by interest rate: Divide the result from Step 5 by the interest rate i.i(1+i)n−1≈0.0530.162727i(1+i)n−1≈3.071075
Multiply by amount deposited: Multiply the result from Step 6 by the amount deposited at the end of each period d.A≈490×3.071075A≈1504.82675
Round to nearest dollar: Round the result to the nearest dollar. A≈$1505