Question

the human heart beats approximately 1.152x10^5 times per day. approximately how many times a year does the heart beat?

Answer 1

Answer:

The heart beats 42048000 times in a year.

Step-by-step explanation:

Given:

The human heart beats approximately 1.152x10^5 times per day.

Now, to find approximately how many times in a year does the heart beat.

In a day the heart beats  $=1.152\times 10^5$

                                         $=1.152\times 100000$

                                         $=115200\ times$

In a year there are 365 days.

So, in a year the heart beats $=115200\times 365$  

                                               $=42048000\ times$

Therefore, the heart beats 42048000 times in a year.