Question

Ebony earned scores of 73 , 79, 88, 98 , and 89 on five math tests. determine her score on the sixth test if her average for the six tests was 83

a) 78
b) 84
c) 89
d) 93

Answer 1

To determine Ebony's score on the sixth test, we need to find the average score for all six tests. Ebony's scores on the first five tests are 73, 79, 88, 98, and 89. By solving an equation, we find that Ebony's score on the sixth test is 71.

Step-by-step explanation:

To determine Ebony's score on the sixth test, we need to find the average score for all six tests. Ebony's scores on the first five tests are 73, 79, 88, 98, and 89. To find the average, we sum up all the scores and divide by the number of tests.

(73 + 79 + 88 + 98 + 89 + x) / 6 = 83

Now we can solve for x:

(73 + 79 + 88 + 98 + 89 + x) = 83 * 6

73 + 79 + 88 + 98 + 89 + x = 498

x = 498 - (73 + 79 + 88 + 98 + 89)

x = 498 - 427

x = 71

Therefore, Ebony's score on the sixth test is 71.