Addies has 7 grades on her report card. The overall average is 77%. One grade was incorrectly recorded as 18% instead of the act
ual grade of 81%. What is Addies actual report card grade?
1 answer:
77(7) = 539, the total points of all her tests
539 - 18 + 81 = correct total points = 602
602/7 = 86 which is the new average
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Step-by-step explanation:
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