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a_sh-v [17]
3 years ago
13

For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −75°C or the me

tal will not be usable. The physicist changes the metal's temperature at a steady rate of −5°C per hour.
Part 1 out of 3
Let t represent time in hours. Enter an inequality. Use the fact that the rate of change in temperature times the number of hours equals the final temperature.


The inequality is?
Mathematics
1 answer:
gayaneshka [121]3 years ago
8 0
If t₀ is the initial temperature of the metal then after time t hours the temperature will be t₀-5t, which must not go below -75℃.
So t₀-5t≥-75.
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