Asked by Dipo
Esther had an average of 72 on her first four maths test. After taking the next test, her average dropped to 70. Which of the following is her most recent test grade
Answers
Answered by
Steve
(68+72)/2 = 70
Or, since 70 is the average,
72 = 70+2
68 = 70-2
Or, since 70 is the average,
72 = 70+2
68 = 70-2
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