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?(1 point)
Responses
n − 5 = 13; Alexa popped 18 balloons.
n − 13 = 5; Alexa popped 18 balloons.
n + 5 = 13; Alexa popped 8 balloons.
n + 13 = 5; Alexa popped 8 balloons.
The equation that can be used to determine the number of balloons Alexa popped is: n + 5 = 13.
To solve this equation, we need to isolate the variable 'n':
n + 5 - 5 = 13 - 5
n = 8
Therefore, Alexa popped 8 balloons.
The correct equation is: n + 5 = 13; Alexa popped 8 balloons.
The correct equation is n - 5 = 13. By rearranging the equation, we can determine the number of balloons Alexa popped.
n - 5 = 13
Adding 5 to both sides of the equation, we get:
n = 18
Therefore, Alexa popped 18 balloons.
So, the correct answer is:
n - 5 = 13; Alexa popped 18 balloons.
To determine the number of balloons Alexa popped, we need to set up an equation based on the given information.
We know that Krista popped 5 balloons and Alexa popped n balloons. Together, they popped a total of 13 balloons. So, we can set up the equation as follows:
5 + n = 13
To find the value of n (the number of balloons Alexa popped), we can solve this equation by isolating n.
To isolate n, we can subtract 5 from both sides of the equation:
n = 13 - 5
n = 8
Therefore, the equation that can be used to determine the number of balloons Alexa popped is: n + 5 = 13. And the number of balloons Alexa popped is 8.
So, the correct answer is: n + 5 = 13; Alexa popped 8 balloons.