Your test grades are 85,74, and 91. What is the lowest grade you can get on the next test and have an average of at least 80

Question

asked Dec 27, 2020 123k views

2 Answers

Allan Wintersieck · Answer 1 · 2020-12-31T06:31:11+0000

Answer:

Lowest grade is 70.

Explanation:

To have an average of 80 the total score is 4 * 80 = 320.

So the score for the next test must be 320 - (85 + 74 + 91)

= 70.