Question

biết rằng -3/4=x/5 gia tri cua x bang bao nhieu

Answer 1

Ta có : -3/4=x/5

➜\(\dfrac{-3}{x}\) = \(\dfrac{4}{5}\)

➜-3.5 = x.4

➞-15 =x.4

➜x = \(\dfrac{-15}{4}\)

Answer 2

Theo bài ra ta có :

\(\dfrac{-3}{4}=\dfrac{x}{5}\Rightarrow\left(-3\right)\cdot5=4\cdot x\)

\(\Rightarrow-15=4x\)

\(\Rightarrow4x=-15\)

\(\Rightarrow x=\left(-15\right):4=-\dfrac{15}{4}\)

Vậy x = \(\dfrac{-15}{4}\)

Answer 3

Giải:

\(\dfrac{-3}{4}=\dfrac{x}{5}\Rightarrow x=-\dfrac{3.5}{4}=-\dfrac{15}{4}.\)

Vậy.....

Answer 4

-15/4

Answer 5

-14/5