Ratio and Proportion

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What does a scale factor of 2 mean in a scale drawing?

A scale factor of 2 means that the drawing is twice the size of the actual object.

What is the relationship between ratios and rates?

Rates are a specific type of ratio that compare quantities with different units, such as miles per hour.

What is direct proportion?

Direct proportion means that as one quantity increases, the other quantity also increases at a constant rate.

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