75 76 and 77 on the first three maath tests what score does she need on tests what score does she need on test #4 so tthat the mean of her scores will be 80

Answer 1

In order to calculate the required score on test #4 to achieve a mean score of 80, we can use the formula for calculating the mean:

Mean = (sum of all scores) / (total number of tests)

Given that the student scored 75, 76, and 77 on the first three tests and aiming for a mean score of 80:

(75 + 76 + 77 + x) / 4 = 80

(228 + x) / 4 = 80
228 + x = 320
x = 92

Therefore, the student needs to score 92 on test #4 in order to achieve a mean score of 80.

Answer 2

whats 320/4

Answer 3

320 divided by 4 is equal to 80.