Question

Mateo measured a picnic area near the river and made a scale drawing. The scale he used was 3 inches = 1 yard. What is the drawing's scale factor?"Simplify your answer and write it as a ratio, using a colon."

Answer 1

EXPLANATION

Since we have that Mateo measured a picnic area and the scale was 3 inches = 1 yard, we need to represent the yard as inches in order to get the scale factor:

1 yard = 36 inches

Dividing both quanitities:

$\text{Scale factor = }\frac{3}{36}=\frac{1}{12}=1\colon12$

In conclusion, the scale factor is 1:12