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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Oh wait, lol, I actually read the problem
What do you think the answer is? @TrinCron
a
am I wrong
Two answers, not just one
c
A is incorrect, C is correct, what is the other correct answer?
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
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