Which situation describes opposite quantities that when combined would equal 0?
A plane ascends to 10,000 feet and then ascends 15,000 feet. How many feet above the ground is the plane?
A plane ascends to 15,000 feet and then descends 15,000 feet. How many feet above the ground is the plane?
A plane ascends to 15,000 feet and then ascends 15,000 feet. How many feet above the ground is the plane?
A plane ascends to 15,000 feet and then descends 10,000 feet. How many feet above the ground is the plane?
The situation that describes opposite quantities that when combined would equal 0 is:
A plane ascends to 15,000 feet and then descends 15,000 feet. How many feet above the ground is the plane?
The situation that describes opposite quantities that when combined would equal 0 is when a plane ascends to a certain height and then descends by the same amount.
In this case, the correct scenario is:
A plane ascends to 15,000 feet and then descends 15,000 feet. How many feet above the ground is the plane?
When the plane ascends to 15,000 feet, it gains 15,000 feet in altitude. However, when it descends by 15,000 feet, it loses the same amount of altitude. So, the net change in altitude is 0. Therefore, the plane would be at the same altitude as the ground, or 0 feet above the ground.
The situation that describes opposite quantities that when combined would equal 0 is the one where a plane ascends to a certain height and then descends by the same amount. This is shown in the second scenario:
"A plane ascends to 15,000 feet and then descends 15,000 feet."
To find out how many feet above the ground the plane is after this scenario, you need to subtract the descent from the ascent:
15,000 feet - 15,000 feet = 0
Therefore, in this situation, the plane is at ground level, or 0 feet above the ground.