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kue apem = y
berat tepung = 8 kg = 8000 gr
berat gula = 2 kg = 2000 gr
model matemayika untuk tepung :
20x + 50y = 8000 ........ pers I
model matematika untuk gula
10x + 5y = 2000 .... kalikan dengan 2
20x + 10y = 4000 .... pers II
elemenasi per I dan II
20x + 50y = 8000
20x + 10y = 4000
-------------------------- -
40y = 4000
y = 4000 / 40
y = 100
20x + 50y = 8000
20x + 50.(100) = 8000
20x + 5000 = 8000
20x = 8000 - 5000
20x = 3000
x = 3000 / 20
x = 150
pendapatan max = 300.x + 500.y
= 300 . 150 + 500 . 100
= 45.000 + 50.000
= 95.000