The temperature at 6:00 a.m. was –12°F. By 3:00 p.m. the temperature had risen 21°F.
What was the temperature at 3:00 p.m.?
A.
–33°F
B.
–9°F
C.
9°F
D.
33°F
Question Resources
endlesslight254
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
@endlesslight254
OpenStudy (michele_laino):
please what is -12 + 21=...?
OpenStudy (anonymous):
9
OpenStudy (michele_laino):
that's right!
OpenStudy (anonymous):
Thx
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (michele_laino):
thanks!
OpenStudy (anonymous):
awww u said -12
OpenStudy (anonymous):
i knew it was 9 :D
OpenStudy (anonymous):
12.6 + (–12.6)
A.
25.2
B.
24.2
C.
0
D.
–25
OpenStudy (anonymous):
A :3 if people r asking for answers why not give it to them
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (michele_laino):
please note that I can re-write your computation, as follows:
\[12.6 + ( - 12.6) = 12.6 - 12.6 = ...?\]
since I applied this rule:
\[ + * - = - \]