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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 :

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:

[tex]\text{Scale factor = }\frac{3}{36}=\frac{1}{12}=1\colon12[/tex]

In conclusion, the scale factor is 1:12

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