Jawaban:
Rp.4000
Penjelasan dengan langkah-langkah:
2x=3y
y = 2/3 x
5x + 6 y = 54000
5x + 6( 2/3x) = 54.000
5x + 12/3x = 54.000
15/3x+12/3x = 54.000
27/3 x= 54.000
x= 54000/9= 6.000 buku
2x = 3y
2(6000)= 3y
12000= 3y
y= 12.000/3=
y= 4000 pensil
5(6000)+6(4000)= 30.000+24.000= 54.000
jadi harga 1 buku= Rp.6000
jadi harga 1 pensil= Rp.4000
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Jawaban:
Rp.4000
Penjelasan dengan langkah-langkah:
2x=3y
y = 2/3 x
5x + 6 y = 54000
5x + 6( 2/3x) = 54.000
5x + 12/3x = 54.000
15/3x+12/3x = 54.000
27/3 x= 54.000
x= 54000/9= 6.000 buku
2x = 3y
2(6000)= 3y
12000= 3y
y= 12.000/3=
y= 4000 pensil
5(6000)+6(4000)= 30.000+24.000= 54.000
jadi harga 1 buku= Rp.6000
jadi harga 1 pensil= Rp.4000