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Four-sevenths of the children in a class got A's on the last history test. Nine children did not get an A. How many children got A's?
Updated: 12/10/2022
Wiki User
∙ 14y agoBest Answer
The class size is 21:
(1-4/7)x=9
(3/7)x=9
x=(7/3)*9=21
The number of children that got A's: 21-9 = 12
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∙ 14y agoThis answer is:
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