“The Paper Stack Problem”: A ream of paper (which contains a stackof 500 pieces of paper) stands 2 inches tall. How tall would a stack of 6 billion pieces of paper be? Give your answer in (a) Inches. Solution: Write the proportion. 500 pieces 2 inches = 6,000,000,000 pieces x inches 3 Set cross products equal. 500 ? x = 2 ? 6,000,000,000 Then perform basic algebra. x = 12,000,000,000 500 = 24,000,000 inches (b) Feet. 24,000,000 inches ? 1 ft 12 in = 2,000,000 feet (c) Miles. (Round to the nearest tenth of a mile.) 378.8 mi 5280 ft 1mi 2,000,000 ft ? Math Statistics and Probability MATH 0097V
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