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A mechanic cuts 10 pieces of copper tubing from a coil. Each piece is 2 ¹/2 inches long. What is the total length used?

User Malavika
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Final answer:

To find the total length of copper tubing used, multiply the length of one piece (converted to an improper fraction, 5/2 inches) by the number of pieces (10), resulting in a total length of 25 inches.

Step-by-step explanation:

The student asked how to calculate the total length of copper tubing used if a mechanic cuts 10 pieces, each measuring 2 ¹/2 inches long. To find the total length, we use multiplication because each piece of copper tubing is 2 ¹/2 inches, and there are 10 identical pieces.

  1. Convert 2 ¹/2 inches into an improper fraction. 2 ¹/2 inches is the same as (2 × 2) + 1 = 5/2 inches.
  2. Multiply the length of one piece of tubing by the total number of pieces: 5/2 inches × 10.
  3. Compute the total length: 5/2 inches × 10 = 25 inches. So, the total length of copper tubing used is 25 inches.

User Dina Kleper
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