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jual = 30 x 3.000 = 90.000
= 20 x 3.500 = 70.000
jual total = 160.000
a . laba = 160.000 - 100.000 = 60.000
b. Persen = 60.000/100.000 x100% = 60%
3. tanggal = 3
bulan = 10
3 - x = 10 -2x
2x - x = 10 - 3
x = 7
Jual: 30 x 3000 = 90.000
: 20 x 3500= 70.000
Jual: 160.000
-Laba = 160.000-100.000 = 60.000
-Persen = 60/100.000 x 100 % = 60%
3 .3-x = 10-2x
2 x-x = 10 - 3
X adalah= 7