Question

To get a B in math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests were 83, 75, 81, and 79. What is the lowest score that she can get on the last test and still get a score B? What is the lowest possible score for getting a B ?

Answer 1

Alexandria Pappas needs a total of 400 points to average a B in her math class. After scoring 318 points on her first four tests, the lowest score she can get on her fifth test to still achieve a B is 82 points.

Step-by-step explanation:

To determine the lowest score Alexandria Pappas can get on the last test to still average a score of 80 for her math class, we first need to calculate the total points she needs over the five tests. Since she needs an average of 80 across five tests, the total points she needs is 5 tests × 80 points/test = 400 points. We can then add up her scores on the first four tests and subtract from 400 to find out what she needs on the last test.

The sum of her first four test scores is 83 + 75 + 81 + 79 = 318 points. Subtracting this from the total points needed gives us 400 - 318 = 82 points. Therefore, the lowest score Alexandria can get on the last test to still get a B is 82.