SOLUTION: each of 5 essays gita writes for her language arts class are worth an equal share of her final marks. she revieved 75%, 91%, 84% and 77% on the first four essays. write an inequali

Question 1030068: each of 5 essays gita writes for her language arts class are worth an equal share of her final marks. she revieved 75%, 91%, 84% and 77% on the first four essays. write an inequality that represents the mark she needs on her fifth essay to have a mean mark of at least 80%.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
For an average of 80%, the total must be 400.
The four to date total 327.
The fifth has to be at least 73.
x> or = to 73 on the last exam to get an average of 80%.
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