Question

Determinati valoarea lui x din proportiile:
a)x/8=3
b)10/x=5/6
C)45/3=60/x
D)2/17=x/34
E)5/8=70/x
DAU COROANA VA ROG =]

Answer 1

a) x / 8 = 3
x = 8 • 3
x = 24.


b ) 10 / x = 5 / 6
5x = 10 • 6
5x = 60
x = 60 / 5
x = 12.


c) 45 / 3 = 60 / x
15 = 60 / x
15x = 60
x = 60 / 15
x = 4.


d) 2 / 17 = x / 34
34 • 2 = 17x
x = 34 • 2 / 17
x = 2 • 2
x = 4.

e) 5 / 8 = 70 / x
5x = 70 • 8
x = 70 • 8 / 5
x = 14 • 8
x = 112.



I hope I helped you :)