You have recorded air temperatures (degree Celsius) for one week and have calculated the following average air temperature for one week Day 1 Day 2

You have recorded air temperatures (degree Celsius) for one week and have calculated the following average air temperature for one week

Day 1 Day 2   Day 3  Day 4  Day 5  Day 6   Day

8           12         10        16       18        21        4

Calculate the number of heating (degree Celsius) days contributed by this week to the yearly total for temperature base 18 and temperature base 12.

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