Question

a)14/56=1/y-1          b)y+3/125=2/5

 

Answer 1

1/4=1/y-1

1/4+1=1/y

5/4=1/y

 => y=4/5

b)

y+3/125=2/5

y=2/5-3/125

y=47/125

k mk nha!!!!! ^-^

Answer 2

giup minh nhe 

Answer 3

a) \(\frac{14}{56}=\frac{1}{y}-1\)

\(\Rightarrow\frac{1}{y}-1=\frac{1}{4}\)

\(\frac{1}{y}=1+\frac{1}{4}\)

\(\frac{1}{y}=\frac{5}{4}\)

\(y=1:\frac{5}{4}\)

\(y=\frac{4}{5}\)

b) \(y+\frac{3}{125}=\frac{2}{5}\)

\(y=\frac{2}{5}-\frac{3}{125}\)

\(y=\frac{47}{125}\)

Answer 4

1 tren y-1 nha