The situation that describes opposite quantities that when combined would equal 0 is:
C. A plane ascends to 15,000 feet and then descends 15,000 feet. How many feet above the ground is the plane?
In this scenario, the plane ascends 15,000 feet (a positive quantity) and then descends 15,000 feet (a negative quantity). When you combine these quantities, you get:
+15,000 feet + (-15,000 feet) = 0 feet
This means the plane ends up at the ground level, which is 0 feet above the ground.
Which situation describes opposite quantities that when combined would equal 0?
A. A plane ascends to 15,000 feet and then ascends 15,000 feet. How many feet above the ground is the plane?
B. A plane ascends to 10,000 feet and then ascends 15,000 feet. How many feet above the ground is the plane?
C. A plane ascends to 15,000 feet and then descends 15,000 feet. How many feet above the ground is the plane?
D. A plane ascends to 15,000 feet and then descends 10,000 feet. How many feet above the ground is the plane?
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