Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity of one per one unit of another quantity.

Front

How do you find the unit rate from a given rate?

Back

To find the unit rate, divide the first quantity by the second quantity to determine how much of the first quantity corresponds to one unit of the second quantity.

Front

If a model is built to scale, what does that mean?

Back

A model built to scale means that the dimensions of the model are proportional to the actual dimensions of the object it represents.

Front

What is the scale factor in a model?

Back

The scale factor is the ratio of a length in the model to the corresponding length in the actual object.

Front

If a car travels 60 miles in 1 hour, what is its speed in miles per hour?

Back

60 miles per hour.

Front

If 30 laps are completed in 10 minutes, how many laps are completed in 1 minute?

Back

3 laps per minute.

Front

What is the cost per pound if 3 pounds of granola cost $3.75?

Back

$1.25 per pound.

Front

How do you determine who is driving faster between two drivers?

Back

Compare their speeds by calculating the distance each driver travels in the same amount of time.

Front

What is the actual height of the Eiffel Tower if a model is 76 cm tall and the scale is 1 cm = 4 meters?

Back

304 meters.