It's was 55°F outside until the temperature increased 20°F. Which number is the additive inverse of the temperature increase?
Mathematics
johnsonalexis890
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

1. User Answers spellspell
55+20=75ºF
I am very confused but I'm guessing. 
2. User Answers calculista
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]