At noon 3

At noon, the temperature was 45˚ F. For the next ten hours, the temperature fell at a steady rate. The graph represents the temperature every hour since noon. At 5:00 temperature was 20°F. At what rate did the temperature fall?

Correct answer:

r =  -5 °F/h

Step-by-step explanation:

t1=45 °F t2=20 °F T=50=5 h  r=Tt2t1=52045=5°F/h

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