Question

Melissa and Brian are at the base of a mountain. Melissa hikes to a location 27 meters above sea level. Brian hikes to a location 21 meters below sea level.

A) Melissa: +27 meters, Brian: -21 meters
B) Melissa: -27 meters, Brian: +21 meters
C) Melissa: -27 meters, Brian: -21 meters
D) Melissa: +27 meters, Brian: +21 meters

Answer 1

Melissa's position above sea level is +27 meters, and Brian's position below sea level is -21 meters, so the correct answer is A) Melissa: +27 meters, Brian: -21 meters.

Step-by-step explanation:

The question asks to determine the correct representation of Melissa and Brian's positions in terms of elevation above or below sea level. Since Melissa hikes to a location 27 meters above sea level, this would be represented by a positive number. Therefore, Melissa is at +27 meters. On the other hand, Brian hikes to a location that is 21 meters below sea level, which is represented by a negative number. Thus, Brian is at -21 meters. Based on this information, the correct answer is:
A) Melissa: +27 meters, Brian: -21 meters.