Jawaban:
no. 3 itu gak ada jawabannya
Caranya :
● -4x + 2y < -8 (dibagi -2)
2x - y < 4
● 6x + 15y < 90 (dibagi 3)
2x + 5y < 30
Nomor 4
● 6x + 4y = 24 (dikali 2)
4x + 8y = 32
------------------------
12x + 8y = 48
-------------------------- --
8x = 16
x = 2
● 4x + 8y = 32
8y = 32 - 4(2)
8y = 24
y = 3
titik kordinatnya (2,3)
Nilai maksimum 5x + 4y
(0,4) 4(4) = 16
(4,0) 5(4) = 20
(2,3) 5(2) + 4(3) = 22
Jadi, nilai maksimumnya adalah 22
Semoga membantu^^
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Jawaban:
no. 3 itu gak ada jawabannya
Caranya :
● -4x + 2y < -8 (dibagi -2)
2x - y < 4
● 6x + 15y < 90 (dibagi 3)
2x + 5y < 30
Nomor 4
Caranya :
● 6x + 4y = 24 (dikali 2)
4x + 8y = 32
------------------------
12x + 8y = 48
4x + 8y = 32
-------------------------- --
8x = 16
x = 2
● 4x + 8y = 32
8y = 32 - 4(2)
8y = 24
y = 3
titik kordinatnya (2,3)
Nilai maksimum 5x + 4y
(0,4) 4(4) = 16
(4,0) 5(4) = 20
(2,3) 5(2) + 4(3) = 22
Jadi, nilai maksimumnya adalah 22
Semoga membantu^^