Need HELP!! The temperature outside dropped 13 degrees Fahrenheit in 7 hours. The final temperature was -2 degrees Fahrenheit. What was the starting temperature?
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You can set up an equation for this, and figure it out very methodically.
We know that the temperature lost 13 degrees, but we do not know what the original temperature was. So, all you have to do, is call x the original temperature
It is equal to -2 because that is the final temperature.
Last thing we need to do, is solve for x
x-13=-2 (add thirteen to both sides)
Therefore, the original temperature was 11 degrees farenheit.
My son still doesn't understand this answer. Is there a more simplified way to explain to him?
We know that the end result is that the final temperature is -2.
But we know that the original temperature was 13 degrees higher.
If we combine these two numbers, we will get the original temperature. Combine as if we add them them. But since the two is negative, it is as though we are subtracting them.
Does this help?
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