Bahan A ≥ 16kg
Bahan A ≥ 16,000gr
Bahan B ≤ 18kg
Bahan B ≤ 18,000gr
Roti 1 -- 200gr Bahan A 100gr Bahan B
Roti 2 -- 100gr Bahan A 100gr Bahan B
Roti 1 dijual = Rp 30,000
Roti 2 dijual = Rp 20,000
Banyaknya roti 1 = X
Banyaknya roti 2 = y
Banyaknya Roti 1 ≤ 2 Banyaknya Roti 2
x ≤ 2y
x/2 ≤ y
200x + 100y ≥ 16,000
= 200x + 100(x/2) ≥ 16,000
= 200x + 50x ≥ 16,000
= 250x ≥ 16,000
= x ≥ 16,000/250
= x ≥ 1,600/25
= x ≥ 64
200x + 100y ≥ 16,000
= 200(64) + 100y ≥ 16,000
= 12,800 + 100y ≥ 16,000
= 100y ≥ 16,000 - 12,800
= 100y ≥ 3,200
= y ≥ 3,200/100
= y ≥ 32
100x + 100y ≤ 18,000
= 100x + 100(x/2) ≤ 18,000
= 100x + 50x ≤ 18,000
= 150x ≤ 18,000
= x ≤ 18,000/150
= x ≤ 120
100x + 100y ≤ 18,000
= 100(120) + 100y ≤ 18,000
= 12,000 + 100y ≤ 18,000
= 100y ≤ 18,000 - 12,000
= y ≤ 6,000/100
= y ≤ 60
Min banyak roti 1 = 64 Buah
Min banyak roti 2 = 32 Buah
maks banyak roti 1 = 120 Buah
Maks banyak roti 2 = 60 Buah
semoga membantu ya ^_^