the temperature at 12 noon is 10 degrees celcius above zero.if it decreases at the rate of 2 degrees celcius per hour until mid night,what would be the ptemperature at 9 pm
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Answer:
-8℃
Step-by-step explanation:
initial temp = 10℃
after nine hours it is 9 pm
fall in temp in 9 hours = 2×9 = 18 ℃
final temp = initial temp - fall in temp
= 10℃ - 18℃
= -8℃
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