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OpenStudy (anonymous):
Write an expression to model the following situation: When Rafa woke up, the temperature was –9°C. By noon, the temperature had increased by 7°C. What was the temperature at noon?
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OpenStudy (anonymous):
i think it is –9 + 7
OpenStudy (anonymous):
Yeah. -9+7=-2 The temp at noon was -2°C.
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