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in the science lab will is testing the freezing point substance which should be -24°c. he is changing at a rate of -3°c per minute starting at 0°c. Write an inequality for the time t before the reaches the freezing point

in the science lab will is testing the freezing point substance which should be 24c he is changing at a rate of 3c per minute starting at 0c Write an inequality class=

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The temperature change is -3 degree per minute and starts at 0 degree so temperature at time t is,

[tex]0+(-3)t=0-3t[/tex]

The inequality of time before the reach of temperature -24 is,

[tex]\begin{gathered} 0-3t>-24 \\ -3t>-24 \end{gathered}[/tex]

So answer is:

First box: -3

Second box: >

Third box: -24

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