Math, asked by 918niwas, 9 months ago

5. The temperature at 12 noon was 10°C above zero. If it decreases at the rate of
per hour until midnight, at what time would the temperature be 8°C below zero
What would be the temperature at mid-night?​

Answers

Answered by Sadanandaananya
24

Answer:

Step-by-step explanation:

Let noon be time t = 0 hr.,

then the temperature T in degrees Celsius at t hr. would be:

T = 10 - 2t

Now,

To find when the temperature is 8°C below zero,

T = -8

10 - 2t = -8

2t = 18

t = 9

Thus, the temperature is 8°C below zero at 9:00 pm.

To find the temperature at midnight,

use t = 12:00

T = 10 - 2(12) = 10 - 24 = -14

Thus, the temperature at midnight is 14∘C below zero.

hope this help u out

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