SOLUTION: Pablo has scored 75,91 ,80 ,78 , and 74 on his previous five tests. What score does he need on his next test so that his average (mean) is ? 76
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Question 787797: Pablo has scored 75,91 ,80 ,78 , and 74 on his previous five tests. What score does he need on his next test so that his average (mean) is ? 76
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If the average of 6 tests is 76, then the sum of all 6 scores must be 76 times 6. Add up the 5 scores he has and subtract that sum from the product of 76 times 6.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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