One town is 20 feet above sea level. Another town is 10 feet below sea level. Are these opposite quantities whose sum is 0? Respond 1 if these quantities are opposites. Respond 2 if these quantities are not opposites.(1 point)
2
To determine if these quantities are opposites, we need to consider their signs. Since one town is 20 feet above sea level, we can represent it as +20 feet. On the other hand, the other town is 10 feet below sea level, so it can be represented as -10 feet.
To check if they are opposites, we add the quantities together: +20 feet + (-10 feet) = +10 feet.
Since the sum is a positive value (+10), which is neither zero nor a negative value, these quantities are not opposites.
Therefore, the correct answer is 2.