Question

The average human heart pumps about 60 milliliters of blood for each beat. Consider the number of liters your heart pumps each day. (Assume an average of 60 beats per minute.) How many milliliters does your heart pump each day? mL/day. 1 milliliter is equivalent to how many liters? 0.001.

How many liters of blood does your heart pump each day?
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.

Answer 1

The average human heart pumps approximately 14,000 liters of blood each day, which is equivalent to 14,000,000 milliliters. Reporting the answer to the nearest 100 liters is a reasonable degree of precision.

Step-by-step explanation:

The average human heart pumps approximately 5.25 liters of blood per minute and around 14,000 liters of blood per day. To convert milliliters to liters, you need to divide the number of milliliters by 1000. Therefore, 1 milliliter is equivalent to 0.001 liters. So, your heart pumps approximately 14,000 liters of blood per day, which is equivalent to 14,000,000 milliliters.

A reasonable degree of precision for this question would be to report the answer to the nearest 100 liters. This is because the original data was given in liters, and the question is asking for liters as the final answer. Therefore, it makes sense to maintain the same level of precision as the original data.