xopepe2740 xopepe2740

10-04-2018
Mathematics

contestada

If the mean is 71.5 and three of the numbers are 58, 76, 88 what is the fourth number

Respuesta :

mkryukova19 mkryukova19

10-04-2018

(58+76+88+x)/4=71.5
(58+76+88+x)=286
x=286-(58+76+88)=64

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