Question

Tom got a 90, 87, and 72 on his math exams. What score does he have to get on his next exam to have an average of 88?

Answer 1

`(90 + 87 + 72 + x)/(4) = 88`

90 + 87 + 72 + x = 88(4)

249 + x = 352

x = 103

Answer: 103

I hope the next exam has extra credit questions!