Final answer:
To calculate the number of liters of air breathed in and out every 7 seconds, you can convert the given measurement of 600 ml to liters by dividing by 1000. Then, determine the number of breaths taken in 1 minute by dividing 60 seconds by 7. Finally, multiply the number of breaths by the volume of each breath to find the total liters of air breathed in 1 minute.
Step-by-step explanation:
To calculate the number of liters of air breathed in and out every 7 seconds, we need to convert the given measurement of 600 ml to liters. There are 1000 ml in 1 liter, so we can divide 600 ml by 1000 to get 0.6 liters. Since the student breathes this amount every 7 seconds, we can determine how many breaths they take in 1 minute by dividing 60 seconds by 7, which is approximately 8.57. Finally, we can calculate how many liters of air the student breathes in 1 minute by multiplying the number of breaths by the volume of each breath, which is 0.6 liters. Therefore, the student breathes approximately 5.14 liters of air in 1 minute.