the temperature has been dropping 3 degrees per hour. at midnight the temperature was 25 degrees. let y be the temperature after x hours
y = 25 - 3 x
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To find the temperature after x hours, we need to determine the relationship between the time and the temperature drop.
We are given that the temperature is dropping at a rate of 3 degrees per hour. This means that every hour, the temperature decreases by 3 degrees.
We are also told that at midnight (x = 0 hours), the temperature was 25 degrees. This gives us the starting point of our temperature drop.
To determine the temperature after x hours, we can use the equation:
y = 25 - 3x
In this equation, y represents the temperature after x hours.
So, for example, if we want to find the temperature after 4 hours, we can substitute x = 4 into the equation:
y = 25 - 3(4)
y = 25 - 12
y = 13
Therefore, the temperature after 4 hours would be 13 degrees.