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David has scored 81 , 87 , 69 , and 82 on his previous four tests. what score does he need on his next test so that his average (mean) is 82 ?

David has scored 81 , 87 , 69 , and 82 on his previous four tests. what score does he need on his next test so that his average (mean) is 82 ?
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David has scored 81 , 87 , 69 , and 82 on his previous four tests. what score does he need on his next test so that his average (mean) is 82 ?

User Gordon Hopper
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1 Answer

5 votes
91 so the mean can avrege out to 82
User Yet
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