Question

Raul is playing a trivia game. At the end of the first round, he has 7 points. During the second round, he loses 15 points. Which expressions represent the total amount of points Raul has at the end of the second round?

A. 7 - (-15)
B. 7 + 15
C. 7 + (-15)
D. -7 + (-15)

Answer 1

The correct expression for the total amount of points Raul has after losing 15 points in the second round of the trivia game is 7 + (-15), which is option C.

Step-by-step explanation:

The correct answer is option C. To find the total amount of points Raul has at the end of the second round, we need to account for the points he loses. Therefore, we start with 7 points and subtract the 15 points he loses.

Using the rules for subtraction, when you subtract a negative number, it is the same as adding the positive equivalent of that number. However, since Raul is losing points, we subtract a positive number. This means we change the sign of the points lost and then perform the addition.

So, the expression representing the total amount of points Raul has at the end of the second round is 7 plus negative 15, which is 7 + (-15). This follows the same principle illustrated by the example: 2 - (-6) = 2 + 6 = 8. Since no negative sign precedes the initial 7 points, choice D is incorrect, and since Raul is losing points, choice B doesn't accurately reflect the loss.