Respuesta :
Answer:
[tex]m=5w[/tex]
Step-by-step explanation:
Let
m-----> the amount of minerals
w-----> the number of workers
we know that
[tex]\frac{m}{w}=\frac{90}{18}=5[/tex]
so
[tex]m=5w[/tex] -----> the relationship represent a proportional variation