Đề thi HK1 Toán 7 - Huyện Vĩnh Tường - Vĩnh Phúc -...

A \(xy = 1,25\)

B \(\frac{x}{y} = 4\)                   

C \(x + y = 5\)

D \(x - y = 3\)

A \(\frac{{10}}{9}\)      

B \(\frac{{19}}{9}\)     

C \(\frac{1}{9}\)     

D \(\frac{1}{3}\)

A \(\frac{{13}}{{12}}\)       

B \(\frac{3}{4}\)       

C \(\frac{{ - 3}}{4}\)    

D \(\frac{{ - 13}}{{12}}\)

A \(\frac{5}{3}\)      

B \(\frac{{10}}{3}\)    

C \(\frac{{ - 5}}{3}\)     

D \(\frac{{ - 10}}{3}\)

A \(x = \frac{5}{{18}}\)     

B \(x = \frac{5}{9}\)      

C \(x = \frac{{10}}{9}\)      

D \(x = \frac{9}{{10}}\)

A \(x = 1\)

B \(x = 2\)  

C \(x = 3\)    

D \(x = 4\) 

A \(\left[ \begin{array}{l}x = \frac{3}{2}\\x = \frac{1}{2}\end{array} \right.\)

B \(\left[ \begin{array}{l}x = \frac{{ - 3}}{2}\\x = \frac{{ - 1}}{2}\end{array} \right.\)

C \(\left[ \begin{array}{l}x = \frac{3}{4}\\x = \frac{1}{4}\end{array} \right.\)

D \(\left[ \begin{array}{l}x = \frac{5}{4}\\x = \frac{3}{4}\end{array} \right.\)