To get a B in math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests were 83, 74, 84, and 77. What is the lowest score that she can get on the last test and still get a B?
First you would add up all four tests scores and then divide the final answer by 4 because there was a total of four tests. Therefore Alexandria can get a score of 79.5% or higher is she wants to average with an 80% on all tests. Hope this helps.
