This is dimensional analysis!

Question:

The price of a ream of paper is $4.00. There are 500 sheets of paper in a ream. If a sheet of paper weighs. 50 oz., then what is the price of one pound of paper? (16 oz. = 1 pound)

Before we answer the question we must first:1. Assess what we have so far. 2. Know what we need to find. 3. Solve. 4. Conclude.

Step 1: What we have so far.*Price of a ream of paper = $4.00

*No. of sheets of paper in a ream = 500pcs.

*A sheet of paper weighs = 0.50oz

Step 2: What we need to find.*The price of 1lb (pound) of paper = ?

Step 3: Solve.*1lb = 16oz

Know how many papers are there in 1lb:

*1lb = 16oz

*1 sheet of paper = 0.50oz

*16oz of paper = 32 pcs of paper.

Because 16 divided by 0.50 is = 32.

*1lb of paper = 32 pcs of paper.

Know how the weight of a ream of paper:

*Ream of paper has 500 papers.

*32 papers = 1lb

500 divided by 32 = 15.625

*Weight of a ream is 15.625lb.

Know how much a pound (lb) of paper is:

*A ream of paper costs $4.00.

*A ream of paper weighs 15.625lb.

4.00 divided by 15.625 = 0.256

*Cost per pound (lb) of paper = $0.256 or $0.26 or 26 cents.

Step 4: Conclusion. After successfully doing the steps above, we can now conclude that the cost per pound of paper is $0.256 or $0.26 or 26 cents.