Nomor 92 pake cara jangan lupa.kalo ga ada caranya ga usah jawab ya.makasih;*
hollow
M = mobil s = sepeda motor 4m + 2s = 300 m + s = 105 | x2 ( menyamakan variabel ) -------------------- - 4m + 2s = 300 2m + 2s = 210 -------------------- - 2m = 90 m = 45 Jumlah Mobil = 45 buah m + s = 105 45 + s = 105 s = 105 - 45 sepeda = 60 buah perolehan = 45 x 5.000 + 60 x 2.000 225.000 + 120.000 = 345.000
s = sepeda motor
4m + 2s = 300
m + s = 105 | x2 ( menyamakan variabel )
-------------------- -
4m + 2s = 300
2m + 2s = 210
-------------------- -
2m = 90
m = 45
Jumlah Mobil = 45 buah
m + s = 105
45 + s = 105
s = 105 - 45
sepeda = 60 buah
perolehan = 45 x 5.000 + 60 x 2.000
225.000 + 120.000
= 345.000