Question

KAK TOLONG YANG BISA INI JAWAB PAKAI CARANYA YHA KAK...... BUAT BESOK KAK......

Answer 1

1. a
(6+4) / 6 = (x+9) / 9
10/6 = (x+9)/9
6(x+9) = 10 × 9
6x + 54 = 90
6x = 90 - 54
6x = 36
x = 36/6
x = 6

b.
10/6 = 25/y
10y = 6 × 25
10y = 150
y = 150/10
y = 15