At 6: 00 p. m., the temperature was 55 degrees f. at 11: 00 p. m. that same evening, the temperature was 40 degrees f. what real number represents the average change in temperature per hour?

Am assuming the text of the problem is:

"At 6:00 p.m., the temperature was 55 Fahrenheit. At 11:00 p.m. that same evening, the temperature was 40 Fahrenheit. What real number represents the average change in temperature per hour?"

Average change in temperature per hour = (55 - 40)/(11 - 6)

Average change in temperature per hour = 15/5

Average change in temperature per hour = 3 Fahrenheit per hour

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