MathDB

One day, the temperature increases steadily from a low of

45^\circ \text{F}

in the early morning to a high of

70^\circ \text{F}

in the late afternoon. At how many times from early morning to late afternoon was the temperature an integer in both Fahrenheit and Celsius? Recall that C \equal{} \frac {5}{9}(F \minus{} 32).

5

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