Question

Buna! Ma ajutati si pe mine va rog frumos la exercitiul urmator ? :*
Se da sirul de rapoarte egale $\frac{x}{12} = \frac{y}{5} = \frac{40}{z}$
Determinati x,y,z stiind ca x+y = 12

Answer 1

$\dfrac{x}{12}=\dfrac y5=\dfrac{x+y}{12+5}=\dfrac{12}{17}$

$\dfrac{x}{12}=\dfrac{12}{17}\Rightarrow x=\dfrac{144}{17}$

$\dfrac y5=\dfrac{12}{17}\Rightarrow y=\dfrac{60}{17}$