Answer:
y = [tex]\frac{96}{5}[/tex]
Step-by-step explanation:
given that y and x are proportional then the equation relating them is
y = kx ← k is the constant of proportionality
to find k use the given condition y = 12 when x = 5
k = [tex]\frac{y}{x}[/tex] = [tex]\frac{12}{5}[/tex]
y = [tex]\frac{12}{5}[/tex] x ← equation of proportionality
when x = 8, then
y = [tex]\frac{12}{5}[/tex] × 8 = [tex]\frac{96}{5}[/tex]