Jawab:
Jika x = jeruk dan y = apel
maka
Ani 2x + 3y = 30.000
Risa x + 4y = 35.000
Febri 2x + 2y = ?
Jawab
2x + 3y = 30.000 | x 1
x + 4y = 35.000 | x 2
2x + 3y = 30.000
2x + 8y = 70.000 -
5y = 40.000
y = 40.000 / 5
y = 8.000
x + 4y = 35.000
x + 4( 8000) = 35.000
x + 32.000 = 35.000
x = 35.000 - 32.000
x = 3000
Febri 2x + 2y = 2(3000) + 2(8000)
= 6000 + 16.000
= 22.000
Jadi Feby jika membeli 2 kg jeruk dan 2 kg apel maka feby harus dibayar sebesar 22.000
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Jawab:
Jika x = jeruk dan y = apel
maka
Ani 2x + 3y = 30.000
Risa x + 4y = 35.000
Febri 2x + 2y = ?
Jawab
2x + 3y = 30.000 | x 1
x + 4y = 35.000 | x 2
2x + 3y = 30.000
2x + 8y = 70.000 -
5y = 40.000
y = 40.000 / 5
y = 8.000
x + 4y = 35.000
x + 4( 8000) = 35.000
x + 32.000 = 35.000
x = 35.000 - 32.000
x = 3000
Febri 2x + 2y = 2(3000) + 2(8000)
= 6000 + 16.000
= 22.000
Jadi Feby jika membeli 2 kg jeruk dan 2 kg apel maka feby harus dibayar sebesar 22.000