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Posted by **Rianna** on Thursday, May 24, 2012 at 5:48am.

- Year 11 Maths B -
**MathMate**, Thursday, May 24, 2012 at 7:29amn1=35, total mass, m1 = 35*49 = 1715

n2=8, total mass, m2 = 8*53 = 424

Total bag count = n1+n2

total mass = m1+m2

New mean mass = (m1+m2)/(n1+n2)

- Year 11 Maths B -
**Anna**, Thursday, May 24, 2012 at 8:14amSo does that mean

n1=35

n2=8

m1=1715

m2=424

Total bag count: 43

Total Mass: 2139

New mean mass: 49.74418605

Round it to the nearest kilo

50kg.

Is that correct???

- Year 11 Maths B :) -
**MathMate**, Thursday, May 24, 2012 at 8:50amPerfect!

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