At noon, the atmospheric pressure at a weather station was 763 mmHg. At 4 p.m., the atmospheric pressure had changed by 29 mmHg.
Which expressions could represent the atmospheric pressure at the weather station at 4 p.m.?
Choose two answers that are correct.
A.
(29 – 763) mmHg
B.
–(763 + 29) mmHg
C.
(763 – 29) mmHg
D.
(763 + 29) mmHg
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OpenStudy (anonymous):
. .
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OpenStudy (shadowlegendx):
Oh wait, lol, I actually read the problem
OpenStudy (shadowlegendx):
What do you think the answer is? @TrinCron
OpenStudy (anonymous):
a
OpenStudy (anonymous):
am I wrong
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OpenStudy (shadowlegendx):
Two answers, not just one
OpenStudy (anonymous):
c
OpenStudy (shadowlegendx):
A is incorrect, C is correct, what is the other correct answer?
OpenStudy (shadowlegendx):
The value, 763 mmHg , changed.
In one case, it went up
In another case, it went down
You need to find the expressions that basically show how the number increased, and decreased