Respuesta :

top= 198
bottom= 9


108/6=18
18= constant porportional (think thats what its called)
162/18=9
11x18=198

For 108 miles you need 6 galons
For 162 miles you need W galons

W = (162 x 6) : 108 = 9 galons
So, for 162 miles you need 9 galons


For 108 miles you need 6 galons
For Y miles you need 11 galons

Y= (108 x 11 ) : 6 = 198

So, for 198 miles you need 11 galons