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12 May, 19:11

At the beginning of a laboratory experiment, the temperature of a substance is - 12.6 °C. During the experiment, the temperature of the substance decreases 7.5 °C. What is the final temperature of the substance?

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  1. 12 May, 19:21
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    All you have to do is subtract - 12.6 C from 7.5 C which equals - 20.1

    -12.6 - 7.5 = - 20.1
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