Question

Daca x/5 = 4/3, atunci numarul x+5/5 este egal cu?
Dau coronita si 25 puncte!

Answer 1

x=5·4/3= 20/3
$\frac{x + 5}{3 } = (\frac{20}{3} + 5 )\times \frac{1}{5} = \frac{35}{3} \times \frac{1}{5} = \frac{7}{3}$

Answer 2

$\it \dfrac{x}{5}=\dfrac{4}{3} \stackrel{derivare}{\Longrightarrow } \dfrac{x+5}{5}=\dfrac{4+3}{3} \Rightarrow \dfrac{x+5}{5}=\dfrac{7}{3}$