Math Problem Statement

Jim drew a scale drawing of a city park. He used the scale 4 millimeters = 8 meters. What scale factor does the drawing use? Simplify your answer and write it as a fraction.

Solution

The problem provided states:

"Jim drew a scale drawing of a city park. He used the scale 4 millimeters = 8 meters. What scale factor does the drawing use? Simplify your answer and write it as a fraction."

Step-by-step solution:

  1. The scale is given as 4 millimeters = 8 meters.

  2. To express this as a scale factor, both measurements need to be in the same unit. Let's convert meters to millimeters:

    • 1 meter = 1000 millimeters, so 8 meters = 8×1000=80008 \times 1000 = 8000 millimeters.
  3. Now, we have the scale as 4 millimeters = 8000 millimeters.

  4. The scale factor is the ratio of the drawing to the actual size: Scale factor=4mm8000mm\text{Scale factor} = \frac{4 \, \text{mm}}{8000 \, \text{mm}}

  5. Simplifying this fraction: 48000=12000\frac{4}{8000} = \frac{1}{2000}

Thus, the scale factor is 12000\frac{1}{2000}.

Let me know if you'd like further clarification or details.

Related questions:

  1. How would the scale change if the real-world distance were 10 meters instead of 8 meters?
  2. What would the drawing size be for a real park section of 100 meters?
  3. How can you convert a scale factor to a ratio (e.g., 1:2000)?
  4. How would you scale up a smaller section of the park on paper?
  5. If 5 millimeters on the drawing represent 10 meters, what would the scale factor be?

Tip: Always ensure units are consistent when calculating scale factors or comparing dimensions in a scale drawing.

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Math Problem Analysis

Mathematical Concepts

Ratios
Scale Factor
Unit Conversion

Formulas

Scale factor = drawing size / actual size

Theorems

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Suitable Grade Level

Grades 6-8