ndThe average adult breathes in about 37L of air every 5 minutes. What is the rate of change of air?
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37 L/ 5 min = 7.4 L /min
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The rate of change of air is 7.4 L/ min
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Case 2.
After 8 seconds there is 2.5L of helium in the ballon. How long will it take to get 10L of helium?
2.5L per 8 seconds
if you have 2.5 L * 4 = 10
So then 8* 4= 32 seconds
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it spent 32
