the temperature at 12 noon was 10℃ above zero.if it decreases at the rate of 2℃ per hour until midnight at what time would the temperature be 8℃ below zero.what would be the tempetature at midn8ght?
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Let noon be time t = 0 hr., then the temperature T in degrees Celsius at t hr. would be:
T = 10 - 2t
To find when the temperature is 8∘C8∘C below zero, we set:
T = -8
10 - 2t = -8
2t = 18
t = 9
Thus, the temperature is 8∘C8∘C below zero at 9:00 pm.
To find the temperature at midnight, use t = 12: T = 10 - 2(12) = 10 - 24 = -14
Thus, the temperature at midnight is 14∘C14∘C below zero.
T = 10 - 2t
To find when the temperature is 8∘C8∘C below zero, we set:
T = -8
10 - 2t = -8
2t = 18
t = 9
Thus, the temperature is 8∘C8∘C below zero at 9:00 pm.
To find the temperature at midnight, use t = 12: T = 10 - 2(12) = 10 - 24 = -14
Thus, the temperature at midnight is 14∘C14∘C below zero.
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yes it will be 8
Thank you
Thank you
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