[tex] \tt = \frac{31 + 28 + 32,5 + 30 + 29,5 + 33 + 29 + 32 + (2 \times 31)}{8 + 2} [/tex]
[tex] \tt = \frac{245 + 62}{10} [/tex]
[tex] \tt = \frac{307}{10} [/tex]
= 30,7 kg
[tex]\purple{\boxed{\blue{\boxed{\green{\star{\orange{\ \: \: \mathcal{JK} \: \: \: {\green{\star}}}}}}}}} [/tex]
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[tex] \tt = \frac{31 + 28 + 32,5 + 30 + 29,5 + 33 + 29 + 32 + (2 \times 31)}{8 + 2} [/tex]
[tex] \tt = \frac{245 + 62}{10} [/tex]
[tex] \tt = \frac{307}{10} [/tex]
= 30,7 kg
[tex]\purple{\boxed{\blue{\boxed{\green{\star{\orange{\ \: \: \mathcal{JK} \: \: \: {\green{\star}}}}}}}}} [/tex]