an adult male's heart pumps about 2.8 million liters of blood a year. It his heart beats 70 times a minute, how much blood does his heart pump with each heart?
2800000/365/24/60/70=76.1 ml
How would life be witout a skeleton?
To find out how much blood an adult male's heart pumps with each beat, we can divide the total amount of blood pumped per year by the number of heartbeats.
Given:
- Total amount of blood pumped per year = 2.8 million liters
- Heartbeats per minute = 70
Step 1: Convert the heartbeats from minutes to a year.
Since there are 60 minutes in an hour and 24 hours in a day, we need to multiply 70 beats per minute by 60 minutes per hour and then by 24 hours per day to get the number of beats in a year.
70 beats/min * 60 min/hr * 24 hr/day = 100,800 beats/year
Step 2: Divide the total amount of blood pumped per year by the number of heartbeats per year to find how much blood the heart pumps with each beat.
2,800,000 liters of blood per year / 100,800 beats per year = 27.78 liters
Therefore, an adult male's heart pumps approximately 27.78 liters of blood with each beat.