A student in an algebra course has test scores of 68, 79, 74, and 82. What score on the next test will raise the student's average to 80?
A)97
B)75
C)95
D)100
E)76

Question

Quizplus · Accepted Answer

To achieve an average of 80 over 5 tests, the total points must be 5 * 80 = 400. The sum of the first four scores is 68 + 79 + 74 + 82 = 303. Therefore, the score needed on the fifth test is 400 - 303 = 97.

A Student in an Algebra Course Has Test Scores of 68