Question

Jika 2 : x = 5 : y maka x: y adalah...

Answer 1

2 : x = 5 : y

2/x=5/y
maka
5x=2y
x=2y/5

dan

2/x=5/y

2y=5x
y=5x/2


=x : y
=2y/5 : 5x/2
=2y/5 x 2/5x
=4y/25y

Answer 2

2/x=5/y
2y=5x
y=5/2x dan x=2/5y

x:y⇒2/5y : 5/2x
= 2/5y . 2/5x
= 4/25xy