To determine how many cans are there per pound of aluminum, we can use the information provided that 8 empty cans make 1/4 pound of aluminum.
First, we calculate how many cans are needed to make 1 pound of aluminum:
- Since 8 cans make 1/4 pound, we can scale this up to find out how many cans are needed for 1 pound.
- We know that 1 pound is 4 times 1/4 pound, so we multiply the number of cans by 4: \[ 8 \text{ cans} \times 4 = 32 \text{ cans} \]
Thus, there are 32 cans per pound of aluminum.
Next, to find out how many cans are needed to make 5 pounds of aluminum:
- We multiply the number of cans per pound by the number of pounds: \[ 32 \text{ cans/pound} \times 5 \text{ pounds} = 160 \text{ cans} \]
Therefore, it takes 160 cans to make 5 pounds of aluminum.