the temperature at 12 noon was 15 degree C above zero. if it decreases at the rate of 3 degree C per hour until midnight , at what time would the temperature be -3 degree C ? what would be the temperature at midnight

the temperature of a place at 12 noon was 14celcius. if it decreased at the rate of 3celcuis per every hour ,what would be the temperature at 8 pm at night.

98.32 =98.320

To find out at what time the temperature would be -3 degrees Celsius, we can determine how many hours it takes for the temperature to drop from 15 degrees above zero to -3 degrees. We know that the temperature decreases at a rate of 3 degrees Celsius per hour.

Let's calculate the number of hours it takes to drop from 15 degrees above zero to -3 degrees:

15 degrees above zero - (-3 degrees) = 18 degrees

18 degrees / 3 degrees per hour = 6 hours

Therefore, it will take 6 hours for the temperature to drop from 15 degrees above zero to -3 degrees.

To find out the temperature at midnight, we know that the temperature decreases at a rate of 3 degrees Celsius per hour, and we need to calculate the number of hours from 12 noon to midnight:

12 hours (from 12 noon to 12 midnight) * 3 degrees per hour = 36 degrees

Therefore, the temperature at midnight would be 15 degrees above zero - 36 degrees = -21 degrees Celsius.

What is the answer for "If the temperature was 12 degree below zero by 6am. By noon, the temperature has risen to 5 degrees above zero. How many degrees did the temperature increase from 6 am to noon?

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-3° is 18° less than 15°

At 3°/hr that will take 6 hours, and happen at 6 pm.

midnight is 12 hours after noon, so the temperature then will be 15-3*12 = -21°C

Note that since 6pm is halfway between noon and midnight, since the temperature dropped 18° by 6 pm, it will drop another 18° by midnight. -3-18 = -21°