Krista and Alexa played balloon darts in a school fair. Krista popped 5 balloons and Alexa popped n balloons. Together, they popped a total of 13 balloons. Which equation can be used to determine the number of balloons Alexa popped? How many balloons did she pop? A. n + 13 = 5; Alexa popped 8 balloons. B. n + 5 = 13; Alexa popped 8 balloons. C. n - 13 = 5; Alexa popped 18 balloons. D. n - 5 = 13; Alexa popped 18 balloons.
1 answer
The correct equation to determine the number of balloons Alexa popped is n + 5 = 13. Since together they popped a total of 13 balloons and Krista popped 5 balloons, the remaining balloons popped must be by Alexa. This equation can be solved to find that Alexa popped 8 balloons. Therefore, the correct answer is B. n + 5 = 13; Alexa popped 8 balloons.