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gan tolong bantuin itung duit njelimet?
agan punya duit yang selisihnya 120rb dari temennya. Dan perbandingan duit kalian 2:5, jadi duit kalian masing2 berapa?
Eh, jangan diketawain ya, aku beneran pusing
eits, jangan buru2! Minta rumusnya dong :D
5 Answers
- Anonymous9 years agoFavorite Answer
x= 120 + y
y/x = 2/5 --------> 5y = 2x ------> y = 2/5 x
Persamaan ke2 dimasukkan ke persamaan ke1 jadi:
x = 120 + 2/5 x
x - 2/5x =120
3/5 x = 120
x = 5/3 kali 120 =200
y = 2/5 kali 200 = 80
Jadi duitnya 200 ribu dan 80 ribu.
- Orang BingungLv 69 years ago
Aku gak tau caranya yang jelas jawaban di atasku benar semua kayaknya...
- Little AngelLv 69 years ago
2 x 120
----------- =
5 x 120
(240 : 3)
------------- =
(600 : 3)
80
-----
200
Jangan tanya angka 3 dapat darimana ya Kak, adek hanya inget sampai segini doang... =_="
Nah tu jawaban Kak Abdul bener... hihihi
- Anonymous9 years ago
80,000 dan 200,000
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