Mr. Feng conducted five math tests. Trinity had completed four tests and scored 79, 78, 82, and 75. She wanted to achieve an average of 80% in her math tests. Write an inequality to find the minimum score Trinity can make on the fifth test in order to score an 80% for all the tests combined?
2 answers
(79 + 78 + 82 + 75 + x) / 5 >= 80
78
1 answer