Mathematics

Question

It's was 55°F outside until the temperature increased 20°F. Which number is the additive inverse of the temperature increase?

2 Answer

  • 55+20=75ºF
    I am very confused but I'm guessing.
  • we know that

    If two numbers have a sum of zero, then we say they are additive inverses

    Let

    x--------> the additive inverse of the increased of temperature

    y-------->  the increased of temperature

    we know that

    [tex]x+y=0[/tex] ---------> equation

    in this problem we have

    [tex]y=20\° F[/tex]

    substitute the value of y in the equation

    [tex]x+20\° F=0[/tex]

    Solve for x

    [tex]x=-20\° F[/tex]

    therefore

    the answer is

    the additive inverse of the temperature increase is [tex]-20\° F[/tex]

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