Leo has 20$ in an account that earns 5% interest compounded annually. To the nearest cent, how much will he have in 1 year? Use the formula B=p(1+r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years. $____
Q. Leo has 20$ in an account that earns 5% interest compounded annually. To the nearest cent, how much will he have in 1 year? Use the formula B=p(1+r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years. $____
Identify Formula and Values: Step 1: Identify the formula and values to use.We use the formula B=p(1+r)t. Here, p=$20, r=5% (or 0.05 as a decimal), and t=1 year.
Substitute Values: Step 2: Substitute the values into the formula.Calculate B=20(1+0.05)1.
Perform Calculation: Step 3: Perform the calculation.First, calculate 1+0.05=1.05.Then, 20×1.05=21.