Answer:
She has to score 8.5 on the balance beam to win .
Step-by-step explanation:
The average score for the gymnast to win the competition is 8.1
Her score was 7.3 on the uneven bars, 8.9 on the floor exercise, and 7.7 on the vault. We have to find how much she has to score on the balance beam for her team to win.
The average score of all the parts must be equal to 8.1
let her score on the balance beam be x.
Now we take the average,
8.1 = [tex]\frac{7.3 + 8.9 + 7.7+x}{4}[/tex]
x = 32.4- 23.9 = 8.5
She has to score 8.5 on the balance beam to win .
