Mathematics, 29.08.2019 03:30 hoyanna69

Rueben has scored 81 , 89 , 90 , 83 , and 77 on his previous five tests. what score does he need on his next test so that his average (mean) is 82 ?

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Rueben has scored 81 , 89 , 90 , 83 , and 77 on his previous five tests. what score does he need on...

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