Răspuns :
ma=(a₁+a₂+...+a₁₀₀):100
ma=47,58
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(a₁+a₂+....+a₁₀₀):100=47,58
a₁+a₂+a₃+a₄+....+a₁₀₀=47,58x100
a₁+......................+a₁₀₀=4758
ma=47,58
---------------------------------------
(a₁+a₂+....+a₁₀₀):100=47,58
a₁+a₂+a₃+a₄+....+a₁₀₀=47,58x100
a₁+......................+a₁₀₀=4758