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Mathematics 7 Online
OpenStudy (anonymous):

. Given that the variable t represents the temperature at 6 p.m., which equation would best model the word problem below? The temperature at the summit of Mt Washington dropped 19°F between 6 p.m. and 10 p.m. If the temperature at 10 p.m. was –12°F, what was the temperature at 6 p.m.?

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