Question

Minta bantuanya dong.. please..sama jawabannya. y..

Answer 1

Verified answer

14) x = apel // y = jeruk
3x + 4y = 85.000
5x+ 3y = 105.000 ( × 4/3 )
____________________
(20/3)x + 4y = 140.000
3x + 4y = 85.000
_________________ -
(11/3)x = 55.000
11x = 165.000
x = 15.000

maka
3x + 4y = 85.000
3(15.000)+4y = 85.000
4y = 85.000 - 45.000
4y = 40.000
y = 10.000

2x + 2y = 2(15.000) + 2(10.000) = 50.000
Kembalian = 60.000 - 50.000 = 10.000 (D)

15)
Persamaannya : (disederhanakan)
12x + 4y <= 48 atau 3x + y <= 12
6x + 12y <= 72 atau x + 2y <= 12
x>= 0 ; y>= 0

Jawaban (E)

Smg membantu :)