Question

At this moment your heart is pumping about 70 ml of blood per heartbeat and your heart is beating at a rate of 72 beats per minute. how many liters of blood will you pump in the next hour? (answer to the nearest tenth.)

Answer 1

You can find how much the blood pumped by multiplying the heart rate with the stroke volume. The heart beats by 72 beats per minute with 70ml blood pumped per beats. Then, the number of blood pumped would be:

number of blood: heart rate * stroke volume= 72 beats/min * 70ml/beats * 60min/hour * 1liters/1000ml= 302.4 L/ hour