Question

Tìm x trong tỉ lệ thức 

\(\frac{5,7}{0,35}=\frac{\left(-x\right)}{0,45}\)

Answer 1

Ta có: \(\frac{5,7}{0,35}=\frac{\left(-x\right)}{0,45}\)

\(\Rightarrow5,7.0,45:0,35=\left(-x\right)\)

\(\Rightarrow2,565:0,35=\left(-x\right)\)

\(\Rightarrow\left(-x\right)=7,3\left(285714\right)\)

Vậy x = -7,3 (285714)

Answer 2

5,7/0,35=(-x)/0,45

=>5,7x0,45=0,35x(-x)

=>0,35x(-x)=2,565

=>(-x)=2,565:0,35

=> x= 2,565: (-0,35)

=>x gần bằng 7,35

Answer 3

-7/23/30

Answer 4

\(\frac{5,7}{0,35}=\left(-\frac{x}{0,45}\right)\)

\(\Rightarrow5,7\times0,45=0,35\times\left(-x\right)\)

1,995=0,35*x

x=1,995:0,35=5,7