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10 October, 11:27

At 7:00 a. m., the temperature was 8°C. What was the temperature at midnight if the temperature was 10° lower? Incorrect answer

A. - 18° C Correct answer

B. - 2° C Incorrect answer

C. 2° C Incorrect answer

D. 18° C

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Answers (1)
  1. 10 October, 13:59
    0
    b) - 2° C

    Step-by-step explanation:

    hello! To solve this problem you should remember how are the operations with negative numbers, for this the only thing we must do is make a subtraction between the initial temperature (8° C) and the negative change of temperature (10° C)

    Ti = initial temperature = 8° C

    ΔT = temperature change = 10° C

    new temperature=Ti-ΔT

    new temperature=8° C-10° C=-2° C

    in conclusion the answer is - 2° C
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