Steve has the following scores on the exams for the semester: 89, 92, and 87. What will Steve need to make on the fourth exam to have a final average of an “A” (a 92 or better)? Use the Equation Editor to write your answer as an inequality.

Question

Steve has the following scores on the exams for the semester: 89, 92, and 87.  What will Steve need to make on the fourth exam to have a final average of an “A” (a 92 or better)?  Use the Equation Editor to write your answer as an inequality.

matt101 · Answer

We want the average to be at least 92, but we don't know the mark on the fourth exam, so call it x. Therefore:

(89 + 92 + 87 + x)/4 >= 92
268 + x >= 368
x >= 100

Good luck Steve...

anonymous · Answer

lol