Math, asked by MK25, 1 month ago

The temperatue at 2pm was goc above zero. If it decreases at the rate of 30c per hour until midnight what will be the temperature at midnight? If it increases at the same rate, what would be the temperature at noon of the next day?
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Answers

Answered by harry366784
1

Step-by-step explanation:

The temperature is decreasing at 2°C per hour

8°C below zero =−8°C

So, total fall in temperature from 10°C to 0°C and from 0°C to −8°C=18°C

Since the temperature falls 2°C in every one hour.

Therefore, to decrease 18°C, time taken = 18/2

= 9 hours

Present time is 12 noon so, the time when the temperature is −8°C

=12noon+9hours

So, The time at which the temperature will be −8°C=9PM

At 9 PM, the temperature is −8°C, the temperature at 12 midnight will be =

(−8°C)+(−2°C×3hours)

=(−8°C)+(−6°C)

=−14°C

So, at 12 midnight the temperature will be−14°C.

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