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R=42−0.7tR
Quinn returned home one summer's day to find it extremely hot. He turned the air conditioner on, and the room's temperature began decreasing at a constant rate. The equation shown above gives the room's temperature, RRR, in degrees Celsius, ttt minutes after Quinn turned on the air conditioner. What was the room's temperature, in degrees Celsius, when Quinn returned home?

 Sep 17, 2021
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Need to know how long Quinn was gone after he turned on the A/C

 Sep 17, 2021

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