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09-10-2016
Mathematics

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3 of 4 numbers had a sum of 22.if the average number is 8 what is the fourth number

Respuesta :

09-10-2016

The total of the 4 numbers is the average multiplied by 4:
[tex]8\times4=32[/tex]
The total of 3 of the numbers is given as 22. Therefore the fourth number is:
32 - 22 = 10.

The answer is 10.

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