Questions: Given the rate per compounding period, find r, the annual rate. 5.3% per half-year

Given the rate per compounding period, find r, the annual rate. 5.3% per half-year
Transcript text: Given the rate per compounding period, find $r$, the annual rate. 5.3\% per half-year
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Solution

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Solution Steps

Step 1: Convert the rate per compounding period to a decimal

To convert the rate per compounding period rp=5.3%r_p = 5.3\% to a decimal, we divide by 100: rp=5.3100=0.053r_p = \frac{5.3}100 = 0.053

Step 2: Calculate the annual rate as a decimal

Using the formula r=(1+rp100)n1 r = (1 + \frac{r_p}{100})^n - 1 , we substitute rpr_p and nn: r=(1+0.053)21=0.109 r = (1 + 0.053)^2 - 1 = 0.109

Step 3: Convert the annual rate from a decimal to a percentage

To convert rr from a decimal to a percentage, we multiply by 100: r=0.109×100=10.88% r = 0.109 \times 100 = 10.88\%

Final Answer: The annual rate rr is 10.88\%.

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