Question

A student scores 72 out of 100 on a test. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 80?

Answer 1

Do you know how to calculate an average?

Answer 2

average: The average of a set of numbers is
the sum of the numbers divided by the number of numbers.

Answer 3

$$\frac{72+x}{2}\geq80$$