Question

Tìm x biết \(\frac{x}{25}\)+\(\frac{x}{40}\)=\(\frac{11}{5}\)

Answer 1

\(\frac{x}{25}+\frac{x}{40}=\frac{11}{5}\)

\(\frac{8x}{200}+\frac{5x}{200}=\frac{11}{5}\)

\(\frac{10x}{200}=\frac{11}{5}\)

\(\frac{1x}{20}=\frac{11}{5}\)

Ta có:x.5=11.20

          5x=220

           x=220:5

           x=44

Vậy x=44

Answer 2

=>x/25=11/5-x/40

=>x/25=88/40-x/40

=>x/25=88-x/40

=>40x=25*(88-x)

=>40x=2200-25x

=>2200=40x+25x

=>2200=65x

=>x=2200:65

=>x=440/13

Answer 3

Thành ơi 8x+5x=13x chứ sao lại 10x

Answer 4

\(\frac{x}{5}+\frac{x}{8}=11\Leftrightarrow\frac{8x+5x}{40}=11\Leftrightarrow x=\frac{440}{13}\)

Answer 5

Mk nhầm một chút nha