Question

Suppose an average person blinks 15 times per hour. How many times does an average person blink in a year? Write the answer in scientific notation (Hint: 1 year = 365 days, 1 day = 24 hours).(1 point

Answer 1

To calculate the average number of blinks in a year, follow these steps:

1. **Calculate the number of hours in a year:**
\[
1 \text{ year} = 365 \text{ days} \times 24 \text{ hours/day} = 8760 \text{ hours}
\]

2. **Calculate the total number of blinks in a year:**
\[
\text{Total blinks} = 15 \text{ blinks/hour} \times 8760 \text{ hours} = 131400 \text{ blinks}
\]

3. **Convert the total blinks into scientific notation:**
\[
131400 = 1.314 \times 10^5
\]

Therefore, the average person blinks approximately \( \mathbf{1.314 \times 10^5} \) times in a year.