You can put this solution on YOUR website! If my average after 3 tests is 92, what do I need to score on my 4th test to raise my average to 94?
:
Let x = the score required to accomplish this = 94
multiply both sides by 4
276 + x = 4(94)
subtract 276 from both sides
x = 376 - 276
x = 100 would raise the score to 94