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The average age of a group of 30 children is 10.3 years. The average age of another group of 50 children is 8.7 years. Find the average age for all of the 80 children

Respuesta :

Answer:

9.3

Step-by-step explanation:

30*10.3 = 309

50*8.7 = 435

309 + 435 = 744

744 / 80 = 9.3

9.3

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