berat rata - rata wayan,made dan nyoman =60kg. berat rata - rata wayan dan made 55, berat rata - made dan nyoman 50kg. tentukan berat masing - masing.
Matematika
ayu2946
Pertanyaan
berat rata - rata wayan,made dan nyoman =60kg. berat rata - rata wayan dan made 55, berat rata - made dan nyoman 50kg. tentukan berat masing - masing.
1 Jawaban
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1. Jawaban nasril8
( W,+ M+N) / 3 = 60. ==» W+M+N = 180
(W+M)/2 = 55. ==» W+M = 110
(W+ M) +N = 180
110 + N = 180
N = 70
(M+N)/2 = 50
M+N = 100
M + 70 = 100
M = 30