Asked by Emily

to pass a course with an A grade, a student ,must have an average of 90 or higher. A students grades on three tests are 93,92 and 83. What is the score the student must get on the nest test to get an A average?

Answers

Answered by PsyDAG
mean = ∑x/n

90 = (92 + 92 + 83 + x)/4

Solve for x.
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