Question

Capitolul : Proportii derivate si rapoarte : Problema : 1) a supra b = 1supra 3--> b-a = 2,4---. a=? b=? 2) a supra b = 1 supra 5--> a+b=12 a=? b=?

Answer 1

a/b=1/3 =>b=3a =>3a-a=2,4 =>2a=2,4 =>a=1,2 =>b=3,6

a/b=1/5 =>b=5a =>a+5a=12 =>6a=12 =>a=2 =>b=10