omar2334
06.05.2020 •
Mathematics
What is the average metabolic rate for a boiler maker who is performing maintenance on the boiler during shutdown and works for 3 hours at 3.5 kcal/min, takes a break for 30 min in a sitting position (metabolic rate = 0.3 kcal/min), resumes working on the outside of the boiler for 3.5 hours (metabolic rate = 2.5 kcal/min), then performs administrative work in the area for 1 hour (metabolic rate = 0.4 kcal/min)?
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Ответ:
The average metabolic rate for the boiler maker during the 8 hours is 2.475 kcal/min.
Step-by-step explanation:
We can calculate the average as a weighted average.
This weighted average can be expressed as:
being ti the hours on each task or break, and Mi the metabolic rate for each task or break.
The average metabolic rate for the boiler maker during the 8 hours is 2.475 kcal/min.
Ответ: