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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 ?
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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 ?
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Sep 15, 2019
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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 ?
Mathematics
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Gordon Hopper
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91 so the mean can avrege out to 82
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Sep 19, 2019
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