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2 years ago

6

In a school experiment the temperature of a substance is changed from 42 degrees F to -54 degrees F at an average rate of 12 deg

rees per hour. Over how many hours does the change take place?

1 answer:

mixas84 [53]2 years ago

5 0

Answer: 8 Hours

(42--54)/12=8

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kogti [31]

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