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)

Question

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 find out how many times an average person blinks in a year, we start with the given information:

• An average person blinks 15 times per hour.
• There are 24 hours in a day.
• There are 365 days in a year.

Now, we can calculate the total number of blinks in a year:

1. Calculate blinks per day: \[ \text{Blinks per day} = 15 \text{ blinks/hour} \times 24 \text{ hours/day} = 360 \text{ blinks/day} \]

2. Calculate blinks per year: \[ \text{Blinks per year} = 360 \text{ blinks/day} \times 365 \text{ days/year} = 131400 \text{ blinks/year} \]

Now, let's express 131400 in scientific notation:

\[ 131400 = 1.314 \times 10^5 \]

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

The correct answer is: 1.314 × 10^5