L> mathematics Problems: Aluminum Recycling math Problems: Aluminum Recycling adapted from class Activities, by Dept of financial & community Development, State that Maine ago to Trash go To school class LEVELS: 7-8 topic AREAS: math, business economics CONCEPT: Recycling aluminum provides sense economically and environmentally. OBJECTIVE: come become aware of the economics affiliated in recycling aluminum. MATERIALS: pen or pencil handout: mathematics Problems: Aluminum Recycling KEYWORDS: recycling BACKGROUND: contrasted with producing an aluminum have the right to from raw materials, recycling one soda can results in 85% much less air pollution and also 97% much less water pollution and uses 90% less energy. new York State, choose several various other states, has actually a bottle deposit law. The bottle bill gives human being an motivation to store litter off the streets and bottles and also cans out of the landfill. For each deposit container you bring to the keep you receive 5 cents and also the container generally is recycle by the company. In other states, cans may be taken to recycling centers which pay by the pound. The following exercise takes place in such a recycling center. PROCEDURE: comment on the advantages of recycling aluminum, and also have the students finish the problems on the following page. Answers: 1.24 cans/lb x 15,000 lb/trailer = 360,000 cans/trailer 2.Answer will depend on her price per can or per pound. For example, if price is 60 cents per pound: $0.60/lb x 15,000 lb = $9,000 3.15,000 lbs/trailer / 30 lbs/collector = 500 can collectors/trailer 4.15,000 lbs/trailer / 800 lbs/bale = 18 complete bales (and 3/4 of one more bale)/trailer 5.24 cans/lb x 800 lb/bale = 19,200 can be ~ / bale 6.100 bales/boxcar x 800 lbs/bale = 80,000 lb. Can be ~ / boxcar 7.100 bales/boxcar x 19,200 cans/bale = 1,920,000 can be ~ / boxcar 8.Answer will rely on her price per have the right to or per pound. Because that example, if price is 60 cent per pound: $0.60/lb x 80,000 lb/boxcar = $48,000/boxcar math Problems: Aluminum Recycling Recycling centers store the used cans they buy from have the right to collectors in trailers. A complete trailer hold 15,000 pounds of loose cans. There are about 24 aluminum can be ~ in a pound. When the trailer is full, the is hauled to a handling plant wherein the loosened cans are pressed into vast 800-pound bales. Bales space loaded right into rail boxcars because that a expedition to an aluminum agency remelting plant. Remelted cans space rolled into new aluminum for new cans. If you space in a state v a bottle bill, the worth of each container is five or ten cents. If her state walk not have a bottle bill, discover out just how much per pound your nearest recycling facility pays for aluminum. If you have no recycling facility near you, ask a regional scrap steel dealer for the price paid because that aluminum scrap. Use a price that 60 cents per pound if girlfriend cannot acquire a neighborhood figure. 1. Suppose you very own a recycling center. If you want to fill your trailer complete of offered beverage cans, how many cans will you need? ____________________________________________ 2. How much cash can you collection for the can be ~ in a complete trailer? ____________________________________________ 3. If each have the right to collector bring 30 pounds, how many collectors need to visit the center before a trailer is full? _____________________________________________ 4. As soon as the trailer is hauled come a handling plant (where loosened cans are baled), exactly how many complete bales deserve to be make from one trailer load? _____________________________________________ 5. How plenty of cans are in one bale? _____________________________________________ 6. The bales space loaded in rail boxcars. A boxcar hold 100 bales. How plenty of pounds the cans room in a full boxcar? _____________________________________________ 7.

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How countless cans are in a full boxcar? _____________________________________________ 8. How much were can collectors paid because that the can be ~ in a boxcar? _____________________________________________ earlier to top