Questions: Find the missing dimension. Use the scale 1:5.

Transcript text: Find the missing dimension. Use the scale $1: 5$.

Solution

Solution Steps

Step 1: Problem 4

The scale is 1 : 5. Model : Actual = 1 : 5 Model = 3 ft Let the actual measurement be $x$ ft. So, $\frac{3}{x} = \frac{1}{5}$. Cross-multiplying, we get $x = 3 \times 5 = 15$ ft.

Step 2: Problem 5

The scale is 1 : 5. Model : Actual = 1 : 5 Model = 7 m Let the actual measurement be $x$ m. So, $\frac{7}{x} = \frac{1}{5}$. Cross-multiplying, we get $x = 7 \times 5 = 35$ m.

Step 3: Problem 6

The scale is 1 : 5. Model : Actual = 1 : 5 Actual = 20 yd Let the model measurement be $x$ yd. So, $\frac{x}{20} = \frac{1}{5}$. Cross-multiplying, we get $5x = 20$. Dividing both sides by 5, we get $x = \frac{20}{5} = 4$ yd.

Final Answer

Actual: $\boxed{15}$ ft
Actual: $\boxed{35}$ m
Model: $\boxed{4}$ yd

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