The temperature at 12 noon was 17°c above 0°c. If it decreases at the rate of 3°c per hour until midnight. What would be temperature at midnight?
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Answer:
19° C
Step-by-step explanation:
Rate of decrease of temperature per hour = 3 °C
Temperature decrease in 12 hr = 12 × 3°C = 36 °C
Temperature at midnight = 17 - 36 = -19 °C
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