Mathematics, 25.11.2020 19:30, alberto81

Plz :< In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does this change take place?
A -8 hours
B. 1/8 hour
C. 1 hour
D. 8 hours

Answers: 2

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Plz :< In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does this change take place? A -8 hours B. 1/8 hour C. 1 hour D. 8 hours

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Plz :< In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does this change take place?
A -8 hours
B. 1/8 hour
C. 1 hour
D. 8 hours