SOLUTION: A student scored 67, 81, and 98 on three algebra tests.What must he score on the fourth test in order to have an average grade of at least 85?

Question 624460: A student scored 67, 81, and 98 on three algebra tests.What must he score on the fourth test in order to have an average grade of at least 85?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

A student scored 67, 81, and 98 on three algebra tests.

What must he scoreon the fourth test in order to have an average grade of at least 85?

Question states***

  (67+81+98+x)/4  ≥ 85

  67+81+98+x ≥ 340    solve for x 

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