SOLUTION: a student scored 69,89,93 on three algebra test. what must he score on the fourth test in order to have an average grade of at least 85
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Question 784176: a student scored 69,89,93 on three algebra test. what must he score on the fourth test in order to have an average grade of at least 85 Answer by solver91311(24713) (Show Source):
In order to average 85 on 4 tests, the sum of the scores on the 4 tests must be 4 times 85. Multiply 4 times 85. Subtract the sum of the scores you know from the product. The result is the necessary score.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
