To have an academic award, Fe needs an average of at least 90. Her grades in 7 subjects are 90, 91, 88, 93, 87 and 92. what possible grades must she get in her 8th subject and qualify for an academic award?
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Answer:
88
Step-by-step explanation:
To have average 88 so for the sixth subject joan only needs 87 to achieve an academic award because when you add all the grades 90+91+88+93+87+93=542 than divide the total to 6 so the average will be 88
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