1. Jika x + y = 100 dan x/y = 1/9, maka y-x= ... 2. 40% dari a sama dengan b. Jika b adalah 16,67% dari 48, maka a+b = ... 3. Jika 5p/q = 5 maka q/5p-q = ... 4.

1. x= 10, y= 90.
y - x = 90 - 10 = 80

2.
b = 16,67% x 48 = 8,0016
40%a = b
40%a = 8,0016
a = 8,0016 / 40% = 20,004
a + b = 20,004 + 8,0016 = 28,0056

Segitu aja mampunya

A. y = 9x
x + 9x = 100
10x = 100
x = 10
y = 9x = 90
y - x = 90 - 10 = 80

B. b = 100/6% dari 48 = 100/6/100 . 48 = 8
2/5 a = 8
2a = 40
a = 20
a+b = 20+8 = 28

C. 5p/q = 5
5p = 5q
p = q


q/5p-q = p/5p-p = 1/5-p