Question

(a,b,c) d. p(4; 0,(5) ;0,6 si b=10)
Urgent!!​

Answer 1

$\it \{a,\ b,\ c\}\ d.\ p.\ \{4;\ 0,(5);\ 0,6\} \Rightarrow \dfrac{a}{4}= \dfrac{b}{0,(5)}= \dfrac{c}{0,6}=k\Rightarrow\\ \\ \\ \Rightarrow\ \begin{cases}\it a=4k\\ \\ \it b=0,(5)k= \dfrac{5}{9}k\\ \\\it c=0,6k= \dfrac{6}{10}k \end{cases} \ \ \ \ \ \ (1)$

$\it b=10 \stackrel{(1)}{\Longrightarrow}\ \dfrac{5}{9}k=10 \Rightarrow k=10\cdot \dfrac{9}{5}=18 \\ \\ a=4k=4\cdot18=72\\ \\ c= \dfrac{6}{10}k= \dfrac{6}{10}\cdot18= \dfrac{108}{10}=10,8$

Answer 2

    Baftă!!

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