The given equation is
[tex] \frac{3}{10n} = \frac{4}{5} [/tex]
We have to solve for n .
We start with cross multiplication, and on doing so, we will get
[tex] 3*5 = 4*10n [/tex]
[tex] 15= 40n [/tex]
Dividing both sides by 40
[tex] \frac{15}{40} = n
\\
n = \frac{3}{8} [/tex]
And that's the value of n , which makes the given equation correct .
