Write in Scientific Notation Quick Check

Question

3 of 53 of 5 Items
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)
Responses

1.314 × 10−4
1.314 times 10 superscript negative 4 baseline

1.314 × 104
1.314 times 10 superscript 4 baseline

1.314 × 10−5
1.314 times 10 superscript negative 5 baseline

1.314 × 105

Answer 1

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

1. Calculate blinks per day:

   • Blinks per hour = 15
   • Hours per day = 24
   • Blinks per day = \( 15 \text{ blinks/hour} \times 24 \text{ hours/day} = 360 \text{ blinks/day} \)

2. Calculate blinks per year:

   • Days per year = 365
   • Blinks per year = \( 360 \text{ blinks/day} \times 365 \text{ days/year} = 131400 \text{ blinks/year} \)

3. Convert to scientific notation:

   • \( 131400 \) can be written in scientific notation as \( 1.314 \times 10^5 \).

Therefore, the correct answer is:

1.314 × 10^5 (1.314 times 10 superscript 5 baseline)