Question

tìm x:

\(2\dfrac{2}{3}:0,03=1\dfrac{7}{9}:x\)

bạn nào biết làm ơn viết cả lời giải cho mình với

Answer 1

\(2\dfrac{2}{3}:0,03=1\dfrac{7}{9}:x\\ \dfrac{8}{3}:\dfrac{3}{100}=\dfrac{16}{9}:x\\ \dfrac{8}{3}\cdot\dfrac{100}{3}=\dfrac{16}{9}\cdot\dfrac{1}{x}\\ \dfrac{800}{9}=\dfrac{16}{9}\cdot\dfrac{1}{x}\\ \dfrac{800}{9}:\dfrac{16}{9}=\dfrac{1}{x}\\ \dfrac{800}{9}\cdot\dfrac{9}{16}=\dfrac{1}{x}\\ 50=\dfrac{1}{x}\\ x=\dfrac{1}{50}\)

Answer 2

2\(\dfrac{2}{3}\):0,03=1\(\dfrac{7}{9}\):x

\(\Rightarrow\)\(\dfrac{8}{3}\):0,03=\(\dfrac{16}{9}\):x

\(\Rightarrow\)\(\dfrac{800}{9}\)=\(\dfrac{16}{9}\):x

\(\Rightarrow\)\(\dfrac{16}{9}\):x=\(\dfrac{800}{9}\)

\(\Rightarrow\)x=\(\dfrac{16}{9}\):\(\dfrac{800}{9}\)

\(\Rightarrow\)x=\(\dfrac{1}{50}\)

Vậy x=\(\dfrac{1}{50}\)