Question

The temperature at noon is a certain place is 12°C. If it decreases at the rate of 2°C per hour at what time would it be –10°C ?

Answer 1

Answer:

Step-by-step explanation:

Rate of decrease = 2° per hour. Time = 18 / 2 = 9 hours.

Answer 2

Answer:

$\huge\sf\underline{\pink{An}\purple{sW}\green{eR}}$

First we'll find the difference between 12 and -10

$\huge\bold\green{12{-\:-\:10\:=\:22⁰C}}$

$\huge\bold\blue{22⁰C{\div{2\:=11hours}}}$

So the time taken will be 11 hours or at 11pm