A commercial jet liner hits an air pocket and drops 257 feet. After climbing 196 feet, it drops another 127 feet. What is its overall vertical change

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Answer: If we take the drops as negatives, and the climbs as positives (the answer will be the absolute value of these) we get:

-221 +174 -156.

When you add these together, you get -203. So the overall vertical change is the absolute value of this, or 203 ft.

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