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-5=13; Alexa popped 18
B. N+13=5; Alexa popped 8
C. n-13=5; Alexa popped 18
D. n+5=13;alexa popped 8

The equation needed to determine the number of balloons Alexa popped is based on the combined total number of balloons that both Krista and Alexa popped, which amounts to 13. Given that Krista popped 5 and Alexa popped n balloons, the equation would be as follows:

Krista's balloons + Alexa's balloons = Total balloons
5 + n = 13

Hence, to find the number of balloons Alexa popped, we need to solve for n in this equation:

n + 5 = 13

Now let's solve for n:

n = 13 - 5
n = 8

Therefore, the correct equation is:

D. n + 5 = 13; Alexa popped 8 balloons