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For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −108°C or the metal will not be usable. The physicist changes the metal's temperature at a steady rate of −4°C per hour.

User CHANDRA
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2 Answers

9 votes

Answer:

If the current temperature is 0 degrees C then:

27 hours

Explanation:

108 divided by 4=27 hours.

User Chris Dickson
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8 votes

-3t < -78

÷-3 ÷-3

_________

t > 26

78÷26=3

User Purple Tentacle
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