Hi,

If your scores on the first four exams (in this class) are 75, 68, 84, and 83, 

what score do you need on the next exam for your overall mean to be at least 70?

 ( 75 + 68 + 84 + 83 +x)/5 ≥ 70    

 ( 75 + 68 + 84 + 83 +x) ≥ 350    Solve for x 

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