Question

An A grade will be given to students having at least 450 total test points. There are two more tests to take before the semester is over. Write and solve an equation to determine what score she needs to average on the next two tests if each question is worth 1 point?

Answer 1

Let p represent her present test point total, and t represent the necessary average on the next two tests.
.. p +2t ≥ 450 . . . . she wants an A grade after the next two tests
.. t ≥ (450 -p)/2 . . . her required average on the next two tests