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
To calculate the number of times an average person blinks in a year, we need to multiply the number of blinks per hour (15) by the number of hours in a day (24), and then multiply that result by the number of days in a year (365).
15 blinks/hour * 24 hours/day * 365 days/year = 131,400 blinks/year
To write this in scientific notation, we can express it as 1.314 x 10^5 blinks/year.
To find out how many times an average person blinks in a year, we first need to calculate how many times they blink in a day, and then multiply that by the number of days in a year.
To find the number of blinks in a day, we multiply the number of blinks per hour (15) by the number of hours in a day (24):
15 blinks/hour * 24 hours/day = 360 blinks/day
Next, we multiply the number of blinks in a day by the number of days in a year. Let's assume there are 365 days in a year (ignoring leap years):
360 blinks/day * 365 days/year = 131,400 blinks/year
To write this answer in scientific notation, we move the decimal point to the right until there is a single non-zero digit to the left of the decimal point, and multiply the result by a power of 10. In this case, the decimal point will be after the '1', so we need to move it 5 places to the right to get a single non-zero digit:
1.31400 * 10^5
Therefore, an average person blinks approximately 1.31400 x 10^5 times in a year.
To calculate the number of times an average person blinks in a year, we need to know how many hours are in a year.
There are 24 hours in a day and 365 days in a year. So, to find the number of hours in a year, we can multiply these two numbers together:
24 hours/day × 365 days/year = 8,760 hours/year.
Next, we need to multiply the number of blinks per hour by the number of hours in a year to find the total number of blinks in a year:
15 blinks/hour × 8,760 hours/year = 131,400 blinks/year.
Finally, we can write the answer in scientific notation. In scientific notation, we write a number as the product of a decimal and a power of 10. In this case, the number of blinks is 131,400, which can be written as:
1.314 × 10^5 blinks/year.
Therefore, an average person blinks 1.314 × 10^5 times in a year.