SOLUTION: hi how r u i am trying 2 score higher own my placement test 2 enter college i having trouble with basics a student earned 87 81 88 on first 3 of 4 test if she wants an average of 8

Question 149837: hi how r u i am trying 2 score higher own my placement test 2 enter college i having trouble with basics a student earned 87 81 88 on first 3 of 4 test if she wants an average of 87 what score must she earn on 4th test my compass study guide says 92 what sequence is used to find 92
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a student earned 87 81 88 on first 3 of 4 test if she wants an average of 87 what score must she earn on 4th test my compass study guide says 92 what sequence is used to find 92
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An average of 87 on 4 tests means a total of 87*4 on all 4 tests, or 348 points.
She now has 87+81+88 = 256, so she needs 92 on the 4th test. 92 = 348-256.
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