Respuesta :

The bakery starts a week with 100% quarts of milk.
In the course of the week they use 70%, meaning the remainder is 30% quarts of milk.
Therefore, the remaining quarts are equivalent to 30%
thus,  36 = 30% to get 100% ;
     (36/30) ×100 = 120
Therefore, the bakery started the week with 120 quarts of milk
         

The bakery starts a week with 100% quarts of milk.

In the course of the week they use 70%, meaning the remainder is 30% quarts of milk.

Therefore, the remaining quarts are equivalent to 30%

thus,  36 = 30% to get 100% ;

    (36/30) ×100 = 120

Therefore, the bakery started the week with 120 quarts of milk