Question

A/5=b/3=c/8=12/144

    Tìm a , b ,c 

GIẢI GIÚP MIK VỚI MIK ĐANG CẦN GẤP

   

 

Answer 1

Bài làm:

Ta có: \(\frac{a}{5}=\frac{b}{3}=\frac{c}{8}=\frac{12}{144}=\frac{1}{12}\)

\(\Rightarrow\hept{\begin{cases}a=\frac{5}{12}\\b=\frac{1}{4}\\c=\frac{2}{3}\end{cases}}\)

Answer 2

\(\frac{a}{5}=\frac{b}{3}=\frac{c}{8}=\frac{12}{144}=\frac{1}{12}\)

\(\Rightarrow\hept{\begin{cases}\frac{a}{5}=\frac{1}{12}\Rightarrow a=\frac{1}{12}.5=\frac{5}{12}\\\frac{b}{3}=\frac{1}{12}\Rightarrow b=\frac{1}{12}.3=\frac{1}{4}\\\frac{c}{8}=\frac{1}{12}\Rightarrow c=\frac{1}{2}.8=4\end{cases}}\)

Vậy \(a=\frac{5}{12};b=\frac{1}{4};c=4\)