average human heart beats about 3.5×10^7 times per year. The current population of Massachusetts is about 7×10^6 people. About how many heartbeats occur in Massachusetts per year? Write the answer in scientific notation. Express the answer to the exact decimal place.

Answer 1

To find the total number of heartbeats in Massachusetts per year, we need to multiply the average number of heartbeats per person by the population of Massachusetts:

(3.5×10^7 heartbeats/yr/person) * (7×10^6 people) = 24.5×10^13 heartbeats

Now, we can simplify this to scientific notation by converting 24.5 to 2.45 and adjusting the exponent:

2.45 x 10^13 heartbeats per year

Therefore, there are approximately 2.45 x 10^13 heartbeats in Massachusetts per year.