vanhookmichaela vanhookmichaela

10-01-2017
Mathematics

contestada

Average = 55 seconds
1st number = 54.3 seconds
2nd number = 56.1 seconds
3rd number = n
What does "n" equal?

Respuesta :

mileszsmith mileszsmith

10-01-2017

(54.3+56.1+n)/3 = 55
54.3+56.1+n = 165
54.6 = n

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