Arturo O. answered 08/19/18
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w = the unknown weight
(w + 12.8 + 12.6 + 11.8 + 9.7)/5 = 12.3
Solve for w and finish from here.
Stacee L N.
asked 08/19/18
Arturo O. answered 08/19/18
Experienced Physics Teacher for Physics Tutoring
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