SOLUTION: The average of 11 numbers is 9, and the average of 9 other numbers is 11. As a decimal to the nearest tenth, what is the average of all 20 numbers?
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-> SOLUTION: The average of 11 numbers is 9, and the average of 9 other numbers is 11. As a decimal to the nearest tenth, what is the average of all 20 numbers?
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Question 712561: The average of 11 numbers is 9, and the average of 9 other numbers is 11. As a decimal to the nearest tenth, what is the average of all 20 numbers? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! The average of 11 numbers is 9, and the average of 9 other numbers is 11. As a decimal to the nearest tenth, what is the average of all 20 numbers?
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11*9 = 99
9*11 = 99
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(99 + 99)/20 = 9.9
