Answer:
3r/4 = 12
Each box of rice weighs 16 ounces
Step-by-step explanation:
Call the weight of the full box of rice r. Then, we get the equation 3r/4 = 12, because we have 3/4 of the box is 12 ounces. Multiply both sides by 4, then divide both sides by 3, to get 3r = 48 and then r = 16.