Question

the temperature at noon at a certain place was 12 degrees above zero. If it decreases at the rate 2 degrees per hour until midnight, at what time would it be 10 degrees below zero? ​

Answer 1

Answer:

Hello Friend

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Here's your answer

The temperature decreases at a rate of 2degrees per hour

It was actually 12 degree above zero

We need to find at what time does the the temperature drops down to 10 degree below zero that is -10

Temperature change = 12-(-10)

=12+10

=22

For one hour it drops by 2degree

So it takes 22/2=11hours to attain -10 degree

It means, at 11'o clock e temperature falls down to -10 degree

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Hope it helps!

Answer 2

Explanation:

The 12 degree above 0 is +12

The 10 degrees below 0 is -10

decreases per hour is -2 degree

The difference between +12 and -10 is in time 22 degree

time taken to decrease 22 degree is 22/2=11 hour

noon is 12:00 after 11 hour the time will be 11:00p.m.

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