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)

Responses

1.314 × 10 to the power of −4
1.314 times 10 superscript negative 4 baseline

1.314 × 10 to the power of 4
1.314 times 10 superscript 4 baseline

1.314 × 10 to the power of 5
1.314 times 10 superscript 5 baseline

1.314 × 10 to the power of −5

1 answer

To determine how many times an average person blinks in a year, we can follow these steps:

  1. Calculate the number of blinks in one hour:

    • The average person blinks 15 times per hour.
  2. Calculate the number of blinks in one day:

    • There are 24 hours in a day, so: \[ \text{Blinks per day} = 15 , \text{blinks/hour} \times 24 , \text{hours/day} = 360 , \text{blinks/day} \]
  3. Calculate the number of blinks in one year:

    • There are 365 days in a year, so: \[ \text{Blinks per year} = 360 , \text{blinks/day} \times 365 , \text{days/year} = 131400 , \text{blinks/year} \]
  4. Convert the result to scientific notation:

    • \( 131400 \) in scientific notation is \( 1.314 \times 10^5 \).

Thus, the number of times an average person blinks in a year is \( \boxed{1.314 \times 10^5} \).