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OverLord2011 [107]
3 years ago
10

on a cold January day, Kiara noticed that the temperature dropped 21 degrees over the course of the day -9°C write and solve an

equation to determine what the temperature was at the beginning of the day.​
Mathematics
1 answer:
Readme [11.4K]3 years ago
3 0

Answer:

The temp started at 12.

Step-by-step explanation:

The temp dropped 21 degrees to -9.

Let t be the old temp.

-9 = t - 21

t = 12

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