# Geometry

The average human heart pumps about 60 milliliters of blood for each beat.

a. About how many liters of blood does your heart pump each day?

b. Do you think a reasonable degree of precision for this question would be to report the answer to the nearest 100 liters, 10 liters, 1 liter, or 1 milliliter? Explain your reasoning.

c. About how many gallons is this?

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1. assuming a heartbeat of 60/min, that's 86400 beats/day.

86400*0.06 = ?

since the volume is given in ml units, but we're dealing with thousands of beats, I'd say 1 liter would be appropriate for the answer.

as for gallons, just look up the conversion factor and multiply.

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