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Algebra_3

Chapter 54

Problem 2

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The average test score of the first students was percent
The average test score of the next students was percent
What was the overall average Save of all of the students?


The overall average score Save = percent




Example:

The average weight of the first 6 pumpkins was 15 pounds.
The average weight of the next 14 pumpkins was 30 pounds.
What was the overal average weight Wave of the pumpkins?

The overall mean (average) can be written as click refresh (F5)

Try this solution by entering (6*15 + 14*30)/(15 + 30) into the Graphing Calculator below in the Function f(x) = box .
Click on the Plot Graph button.
The answer will appear below the Function f(x)=box as f(x) = 11.333...

Graphing Calculator