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Mathematics, 10.03.2021 22:30 gabrielolivas59

a student wants to get an average of 80 on his 5 test to earn an A grade .On 4 test he gets 79, 88, 64, 78.how much should be score on his 5 test to get his average of 80?​

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a student wants to get an average of 80 on his 5 test to earn an A grade .On 4 test he gets 79, 88,...

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