Question

Jawab nih bagi poin anggep aja kuis, dengan tepat jadiin terbaik

Answer 1

Verified answer

Sekarang :
Tua = t
Muda = m


(t - 2) + ( m - 2) = 31
t + m - 4 = 31
t + m = 35

-----------------
2(m + 5) = (t + 5) + 18
2m + 10 = t + 23
2m - t = 13


t + m = 35
-t + 2m = 13
----------------- +
3m = 48
m = 16 th

t + m = 35
t + 16 = 35
t = 35-16
t = 19 thn

E

Answer 2

Verified answer

Materi: SPLDV

Misal x = usia orang yg muda skrg
y = usia org yg tua skrg
Terbentuk dua persamaan:
(x-2)+(y-2) = 31 yg artinya x+y = 35.
2(x + 5) = (y+5) + 18 artinya 2x-y = 13
Jumlah kedua persamaan utk memperoleh
3x = 48, x = 16.
x+y = 16+y = 35, y = 19.
Usia yg tua saat ini 19 tahun.