Ella deposited $2500 into a savings account.The relationship between the time, t, in years, since the account was first opened, and Ella's account balance, B(t), in dollars, is modeled by the following function.B(t)=2500⋅e0.025tWhat will the balance of Ella's savings account be after 4 years? Round your answer, if necessary, to the nearest hundredth.$
Q. Ella deposited $2500 into a savings account.The relationship between the time, t, in years, since the account was first opened, and Ella's account balance, B(t), in dollars, is modeled by the following function.B(t)=2500⋅e0.025tWhat will the balance of Ella's savings account be after 4 years? Round your answer, if necessary, to the nearest hundredth.$
Identify Given Information: Identify the given information and the formula to use.We are given the initial deposit amount (2500),theannualinterestrateintheformofanexponentialgrowthrate(0.025),andthetimeperiod(4years).WewillusetheexponentialgrowthformulaB(t) = 2500 \cdot e^{0.025 \cdot t}tocalculatethebalanceafter4$ years.
Substitute Values into Formula: Substitute the given values into the formula.\(\newline\)We need to substitute \(t = 4\) into the formula to find \(B(4)\), which represents the balance after \(4\) years.\(\newline\)\(B(4) = 2500 \times e^{(0.025 \times 4)}\)
Calculate Exponent Part: Calculate the exponent part of the formula.\(\newline\)\(0.025 \times 4 = 0.1\)\(\newline\)Now we have \(B(4) = 2500 \times e^{0.1}\)
Calculate Value of \(e^{0.1}\): Calculate the value of \(e^{0.1}\). Using a calculator, we find that \(e^{0.1} \approx 1.105170918\)
Multiply Initial Amount: Multiply the initial amount by the calculated exponential factor to find the balance.\(\newline\)\(B(4) = 2500 \times 1.105170918\)\(\newline\)\(B(4) \approx 2762.927295\)
Round to Nearest Hundredth: Round the result to the nearest hundredth as instructed.\(\newline\)B(\(4\)) \(\approx\) \(\$2762.93\)
More problems from Convert between customary and metric systems