Extracted text: Example. Consider a household on a given day received 20 Ib of consumer goods (food, paper, cardboard, and cans). The family stored 7.65 Ib from food products, which represent 45% of the goods brought into the house. The remaining food is ground up and discharged to the local sewer. Cans represented 30% of the goods entering the house, 4 Ib of cans were recycled and the remaining were stored into the house. Paper and cardboard were 5% were incinerated by the family where 80% was stored in the house and the remainder paper was discharged as mixed waste. Prepare a material balance for this house on this day?