Penjelasan dengan langkah-langkah:
1.)
misalkan :
2x + 3y = 80.000
2x + y = 60.000
_____________-
2y = 20.000
y = 20.000/2
y = 10.000(harga Coca cola)
subs
2x + 10.000 = 60.000
2x = 60.000 - 10.000
2x = 50.000
x = 50.000/2
x = 25.000 (harga burger)
2.
= 5x + 2y
= 5(25.000) + 2(10.000)
= 125.000 + 20.000
= 145.000
3.
3x + 2y = 650
x + 2y = 350
___________-
2x = 300
x = 300/2
x = 150 Yen ( harga roti)
150 + 2y = 350
2y = 350-150
2y = 200
y = 200/2
y = 100 Yen (harga eskrim)
4.
= 4x + 4y
= 4(150) + 4(100)
= 600 + 400
= 1.000 yen
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Penjelasan dengan langkah-langkah:
1.)
misalkan :
2x + 3y = 80.000
2x + y = 60.000
_____________-
2y = 20.000
y = 20.000/2
y = 10.000(harga Coca cola)
subs
2x + y = 60.000
2x + 10.000 = 60.000
2x = 60.000 - 10.000
2x = 50.000
x = 50.000/2
x = 25.000 (harga burger)
2.
= 5x + 2y
= 5(25.000) + 2(10.000)
= 125.000 + 20.000
= 145.000
3.
misalkan :
3x + 2y = 650
x + 2y = 350
___________-
2x = 300
x = 300/2
x = 150 Yen ( harga roti)
subs
x + 2y = 350
150 + 2y = 350
2y = 350-150
2y = 200
y = 200/2
y = 100 Yen (harga eskrim)
4.
= 4x + 4y
= 4(150) + 4(100)
= 600 + 400
= 1.000 yen